7th October 2016 IMAX release date!
According to IMAX themselves:
http://www.imax.com/content/imax-corporation-reports-first-quarter-2016-financial-results-highlights
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In addition, the Company will be releasing an IMAX original production, A Beautiful Planet, on April 29, 2016 and a documentary film, Voyage of Time, on October 7, 2016.