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IMAX EXPLAINED: 70mm Film, Negative Cutting, Processing and Projecting episode artwork

EPISODE · Aug 4, 2026 · 1H 18M

IMAX EXPLAINED: 70mm Film, Negative Cutting, Processing and Projecting

from Raiders Of The Lost Podcast · host Big IP | Realm

What is IMAX? Why does the format still feel so uniquely immersive compared to standard 35mm or digital projection? In this episode, we get a rare guided tour of IMAX’s Los Angeles facility with Patricia Keighley, the company’s Chief Quality Guru, for an up-close look at how true 15/70 IMAX films are cut, stored, printed, assembled, shipped, and projected.See negative cutting for Christopher Nolan’s The Odyssey, where master cutter German Núñez hand-splices the giant original camera negative frame by frame. Tour the cold-storage vaults holding irreplaceable 15/70 elements, the print assembly area led by Irving Barrios, the fulfillment and shipping operation, and IMAX’s private projection booth. We also visit the David Keighley Theater (named for Patricia’s late husband and IMAX pioneer) and examine the Keighley camera… used for every shot of The Odyssey and named after both of them. Along the way we cover the origins of IMAX, the technical magic of 15-perf 70mm film, how it stacks up against other formats, and why Nolan’s full commitment to the medium continues to push the format forward. If you’re listening to the audio version, seek out the video on iHeart, Spotify, or YouTube for exclusive footage captured inside IMAX headquarters… some of the most rare looks at the process ever shared. Code RAIDERS10 for 10% off ALL MOVIE POSTERS: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.movieposters.com?sca_ref=8459350.sfobUgp0yonXc Table of Contents 0:00 (Intro) 1:14 (IMAX History) 8:30 (Negative Cutting) 19:01 (Interview with Patricia Keighley) 34:04 (Cold Storage) 41:04 (Film Processing) 57:15 (Fulfillment & Shipping) 1:03:25 (Projection Booth & Theater) Learn more about your ad choices. Visit megaphone.fm/adchoices

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IMAX EXPLAINED: 70mm Film, Negative Cutting, Processing and Projecting

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