IMAX CORPORATION

Exhibit 99.1

IMAX CORPORATION

2525 Speakman Drive

Mississauga, Ontario, Canada L5K 1B1

Tel: (905) 403-6500 Fax: (905) 403-6450

www.imax.com

IMAX CORPORATION REPORTS FIRST-QUARTER 2018 RESULTS

HIGHLIGHTS

NEW YORK – May 1, 2018 – IMAX Corporation (NYSE:IMAX) today reported first-quarter 2018 revenues of $85.0 million, gross profit of $50.7 million and net income attributable to common shareholders of $8.5 million, which calculates to $0.13 per diluted share. Adjusted net income attributable to common shareholders for the first quarter was $13.4 million, which calculates to $0.21 per diluted share. Adjusted EBITDA per Credit Facility was $31.4 million. For reconciliations of reported results to non-GAAP financial results, and for the definition and reconciliation of Adjusted EBITDA per Credit Facility, please see the end of this press release.

“Our first quarter results were strong from both a financial and strategic standpoint. We modified our programming strategy, demonstrated operating leverage and set the table for the successful launch of IMAX with Laser, which was bolstered by over 150 signings to date,” said Richard L. Gelfond, IMAX CEO. “In addition to benefitting from the revenue and cost initiatives we implemented last year—which helped drive Adjusted EBITDA growth of 70%, compared to Q1 last year—our recent performance also reflects IMAX’s growing value proposition to content-creators and moviegoers alike. As content-creators emphasize blockbuster-type content and as consumers seek differentiated moviegoing experiences, The IMAX Experience^® is becoming an increasingly important platform to launch and experience global franchise content.” Gelfond concluded, “We believe our global footprint, coupled with our focus on creating differentiated experiences for the biggest cinematic releases, uniquely positions IMAX to benefit from these trends.”

First-Quarter 2018 Results

Network Update

During the quarter, the Company installed 16 theater systems, all of which were for new theater locations. The total IMAX^® theater network consisted of 1,382 systems as of March 31, 2018, of which 1,286 were in commercial multiplexes. There were 529 theaters in backlog as of March 31, 2018, compared to the 524 in backlog as of March 31, 2017.

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IMAX signed contracts for 45 new theaters across 8 countries in the first quarter of 2018. For a breakdown of theater system signings, installations, network and backlog by type for the first quarter of 2018, please see the end of this press release.

Box Office Update

Gross box office from IMAX DMR^® films increased 16.4% to $246.9 million in the first quarter of 2018 from $212.1 million in the first quarter of 2017. Gross box office was generated primarily by the exhibition of 22 films (14 new and 8 carryovers), as compared to 18 films (12 new and 6 carryovers) exhibited in the first quarter of 2017.

First-Quarter Consolidated Results

The gross margin across all segments in the first quarter of 2018 was $50.7 million, or 59.6% of total revenues, compared to $35.8 million, or 52.1% of total revenues, in the first quarter of 2017. Operating expenses (which includes SG&A, excluding stock-based compensation, plus R&D) were $27.3 million in the quarter, down 9% compared to $30.0 million in the first quarter of 2017.

“Looking ahead, our objectives this year are focused on improving the earnings power of our core business, increasing the differentiation of The IMAX Experience relative to other moviegoing options, and reinforcing the strength of our brand amongst worldwide consumers.” Gelfond continued, “We believe these initiatives, coupled with our continued signings and installation momentum, should create meaningful value across the IMAX ecosystem. Moreover, we’re encouraged by the exciting upcoming film slate, the successful launch of IMAX with Laser and our continued focus on controlling costs.”

FASB ASC Topic 606 Revenue Recognition

As a result of adopting ASC Topic 606 regarding changes to revenue recognition, the Company recognized an additional $0.7 million of net incremental revenue in the first quarter of 2018. Additional details related to these revenue recognition changes can be found in our 10-Q document.

First-Quarter Segment Results

Network Business

Theater Business

Supplemental Materials

For more information about the Company’s results, please refer to the IMAX Investor Relations website located at investors.imax.com.

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Investor Relations Website and Social Media

On a weekly basis, the Company posts quarter-to-date box office results on the IMAX Investor Relations website located at www.imax.com/content/investor-relations. The Company expects to provide such updates on Friday of each week, although the Company may change this timing without notice. Results will be displayed with a one-week lag. In addition, the Company maintains a Twitter account: @IMAX_Investors. The Company intends to use Twitter to disclose the box office information, as well as other information that may be of interest to the Company’s investor community.

The information posted on the Company’s website and/or via its Twitter account may be deemed material to investors. Accordingly, investors, media and others interested in the Company should monitor the Company’s website and its Twitter account in addition to the Company’s press releases, SEC filings and public conference calls and webcasts.

Conference Call

The Company will host a conference call today at 8:30AM ET to discuss its first quarter and 2018 financial results. This call is being webcast by Nasdaq and can be accessed at investors.imax.com. To access the call via telephone, interested parties in the US and Canada should dial (800) 289-0438 approximately 5 to 10 minutes before the call begins. Other international callers should dial (647) 484-0478. The conference ID for the call is 9118022. A replay of the call will be available via webcast at investors.imax.com or via telephone by dialing (888) 203-1112 (US and Canada), or (647) 436-0148 (international). The Conference ID for the telephone replay is 9118022.

About IMAX Corporation

IMAX, an innovator in entertainment technology, combines proprietary software, architecture and equipment to create experiences that take you beyond the edge of your seat to a world you’ve never imagined. Top filmmakers and studios are utilizing IMAX theaters to connect with audiences in extraordinary ways, and, as such, IMAX’s network is among the most important and successful theatrical distribution platforms for major event films around the globe.

IMAX is headquartered in New York, Toronto and Los Angeles, with additional offices in London, Dublin, Tokyo, and Shanghai. As of March 31, 2018, there were 1,382 IMAX theater systems (1,286 commercial multiplexes, 12 commercial destinations, 84 institutional) operating in 77 countries. On Oct. 8, 2015, shares of IMAX China, a subsidiary of IMAX Corp., began trading on the Hong Kong Stock Exchange under the stock code “HK.1970.”

IMAX^®, IMAX^® 3D, IMAX DMR^®, Experience It In IMAX^®, An IMAX 3D Experience^®, The IMAX Experience^®, IMAX Is Believing^® and IMAX nXos^® are trademarks of IMAX Corporation. More information about the Company can be found at www.imax.com. You may also connect with IMAX on Facebook (www.facebook.com/imax), Twitter (www.twitter.com/imax) and YouTube (www.youtube.com/imaxmovies).

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This press release contains forward looking statements that are based on IMAX management’s assumptions and existing information and involve certain risks and uncertainties which could cause actual results to differ materially from future results expressed or implied by such forward looking statements. Important factors that could affect these statements include, but are not limited to, references to future capital expenditures (including the amount and nature thereof), business and technology strategies and measures to implement strategies, competitive strengths, goals, expansion and growth of business, operations and technology, plans and references to the future success of IMAX Corporation together with its consolidated subsidiaries (the “Company”) and expectations regarding the Company’s future operating, financial and technological results. These forward-looking statements are based on certain assumptions and analyses made by the Company in light of its experience and its perception of historical trends, current conditions and expected future developments, as well as other factors it believes are appropriate in the circumstances. However, whether actual results and developments will conform with the expectations and predictions of the Company is subject to a number of risks and uncertainties, including, but not limited to, risks associated with investments and operations in foreign jurisdictions and any future international expansion, including those related to economic, political and regulatory policies of local governments and laws and policies of the United States and Canada; risks related to the Company’s growth and operations in China; the performance of IMAX DMR films; the signing of theater system agreements; conditions,

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changes and developments in the commercial exhibition industry; risks related to currency fluctuations; the potential impact of increased competition in the markets within which the Company operates; competitive actions by other companies; the failure to respond to change and advancements in digital technology; risks relating to recent consolidation among commercial exhibitors and studios; risks related to new business initiatives; conditions in the in-home and out-of-home entertainment industries; the opportunities (or lack thereof) that may be presented to and pursued by the Company; risks related to cyber-security; risks related to the Company’s inability to protect the Company’s intellectual property; general economic, market or business conditions; the failure to convert theater system backlog into revenue; changes in laws or regulations; the failure to fully realize the projected cost savings and benefits from the Company’s restructuring initiative; and other factors, many of which are beyond the control of the Company. These factors, other risks and uncertainties and financial details are discussed in IMAX’s most recent Annual Report on Form 10-K and Quarterly Reports on Form 10-Q.

For additional information please contact:

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Additional Information

Signings and Installations

March 31, 2018

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IMAX CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands of U.S. dollars, except per share amounts)

(Unaudited)

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IMAX CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands of U.S. dollars)

(Unaudited)

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IMAX CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands of U.S. dollars)

(Unaudited)

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IMAX CORPORATION

SELECTED FINANCIAL DATA

In accordance with United States Generally Accepted Accounting Principles

(in thousands of U.S. dollars)

The Company has four primary reporting groups identified by nature of product sold or service provided: (1) Network Business, representing variable revenue generated by box-office results and which includes the reportable segments of IMAX DMR and contingent rent from the JRSAs and IMAX systems segments; (2) Theater Business, representing revenue generated by the sale and installation of theater systems and maintenance services, primarily related to the IMAX Systems and Theater System Maintenance reportable segments, and also includes fixed hybrid revenues and upfront installation costs from the JRSA segment; (3) New Business, which includes content licensing and distribution fees associated with our original content investments, virtual reality initiatives, IMAX Home Entertainment, and other business initiatives that are in the development and/or start-up phase, and (4) Other; which includes the film post-production and distribution segments and certain IMAX theaters that the Company owns and operates, camera rentals and other miscellaneous items.

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IMAX CORPORATION

OTHER INFORMATION

(in thousands of U.S. dollars)

Non-GAAP Financial Measures:

In this release, the Company presents adjusted net income, adjusted net income per diluted share, adjusted net income attributable to common shareholders and adjusted net income attributable to common shareholders per diluted share, EBITDA and adjusted EBITDA as supplemental measures of performance of the Company, which are not recognized under U.S. GAAP. The Company presents adjusted net income and adjusted net income per diluted share because it believes that they are important supplemental measures of its comparable controllable operating performance and it wants to ensure that its investors fully understand the impact of its stock-based compensation (net of any related tax impact) on net income. In addition, the Company presents adjusted net income attributable to common shareholders and adjusted net income attributable to common shareholders per diluted share because it believes that they are important supplemental measures of its comparable financial results and could potentially distort the analysis of trends in business performance and it wants to ensure that its investors fully understand the impact of net income attributable to non-controlling interests and its stock-based compensation (net of any related tax impact) in determining net income attributable to common shareholders. Management uses these measures to review operating performance on a comparable basis from period to period. However, these non-GAAP measures may not be comparable to similarly titled amounts reported by other companies. Adjusted net income, adjusted net income per diluted share, adjusted net income attributable to common shareholders and adjusted net income attributable to common shareholders per diluted share should be considered in addition to, and not as a substitute for, net income and net income attributable to common shareholders and other measures of financial performance reported in accordance with U.S. GAAP.

The Company is required to maintain a minimum level of “EBITDA”, as such term is defined in the Company’s credit agreement (and which is referred to herein as “Adjusted EBITDA”, as the credit agreement includes additional adjustments beyond interest, taxes, depreciation and amortization). EBITDA and Adjusted EBITDA (each as defined below) should not be construed as substitutes for net income or as better measures of liquidity as determined in accordance with U.S. GAAP. The Company believes that EBITDA and Adjusted EBITDA are relevant and useful information widely used by analysts, investors and other interested parties in the Company’s industry.

Adjusted EBITDA per Credit Facility of $31.4 million and $151.1 million for the three and twelve months ended March 31, 2018 respectively, include the impact of the Company’s investment in “Marvel’s Inhumans”, which resulted in a $0.1 million and $13.0 million loss, respectively. However, as permitted by the Credit Facility, this loss was offset by addbacks of $nil and $13.3 million for amortization and by addbacks of, $nil and $11.7 million for impairment charges relating to the investment, in each case for the three and twelve months ended March 31, 2018, respectively. The net effect of these addbacks was to increase Adjusted EBITDA per Credit Facility by $0.1 million and $12.0 million for the three and twelve months ended March 31, 2018, respectively. This investment represents the Company’s first foray into a commercial television property, and therefore the Adjusted EBITDA per Credit Facility metric presented above may not be reflective of the Company’s typical operational activity. Further, the Company does not yet know whether it will make similar investments in the future. As a result, the Company is also presenting Adjusted EBITDA per Credit Facility excluding the impact of “Marvel’s Inhumans” to better facilitate comparisons to prior and future periods.

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IMAX CORPORATION

OTHER INFORMATION

(in thousands of U.S. dollars)

Adjusted Net Income and Adjusted Diluted Per Share Calculations – Quarter Ended March 31, 2018 vs. 2017:

The Company reported net income of $12.1 million, which calculates to $0.19 per basic and diluted share, for the first quarter of 2018 as compared to a net loss of $0.9 million, or $0.01 per basic and diluted share for the first quarter of 2017. Net income for the first quarter of 2018 includes a $4.8 million charge, or $0.08 per diluted share (2017 — $5.3 million or $0.08 per diluted share), for stock-based compensation and a $0.7 million charge, or $0.01 per diluted share (2017—$nil), for exit costs, restructuring charges and associated impairments. Adjusted net income, which consists of net income excluding the impact of stock-based compensation, exit costs, restructuring charges and associated impairments and the related tax impact, was $17.1 million, or $0.27 per diluted share, for the first quarter of 2018 as compared to adjusted net income of $3.0 million, or $0.05 per diluted share, for the first quarter of 2017. The Company reported net income attributable to common shareholders of $8.5 million, or $0.13 per basic and diluted share for the first quarter of 2018 (2017 — $0.1 million or $nil per basic and diluted share). Adjusted net income attributable to common shareholders, which consists of net income attributable to common shareholders excluding the impact of stock-based compensation, exit costs, restructuring charges and associated impairments and the related tax impact, was $13.4 million, or $0.21 per diluted share, for the first quarter of 2018 as compared to adjusted net income attributable to common shareholders of $3.9 million, or $0.06 per diluted share, for the first quarter of 2017. A reconciliation of net income and net income attributable to common shareholders, the most directly comparable U.S. GAAP measure, to adjusted net income, adjusted net income per diluted share, adjusted net income attributable to common shareholders and adjusted net income attributable to common shareholders per diluted share is presented in the table below:

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Free Cash Flow:

Free cash flow is defined as cash provided by operating activities minus cash used in investing activities (from the consolidated statements of cash flows). Cash provided by operating activities consist of net income, plus depreciation and amortization, plus the change in deferred income taxes, plus other non-cash items, plus changes in working capital, less investment in film assets, plus other changes in operating assets and liabilities. Cash used in investing activities includes capital expenditures, acquisitions and other cash used in investing activities. Management views free cash flow, a non-GAAP measure, as a measure of the Company’s after-tax cash flow available to reduce debt, add to cash balances, and fund other financing activities. Free cash flow does not represent residual cash flow available for discretionary expenditures. A reconciliation of cash provided by operating activities to free cash flow is presented in the table below:

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