Physical collectors argue that streaming isn't true IMAX. The (6 films) remains the gold standard. It is currently trending on eBay and Blu-ray forums due to its out-of-print status.

Historically, the massive size of 70mm film reels and cameras limited filmmakers to shorter runtimes, making the 40-minute documentary the standard.

Narrated by Liam Neeson, examining the fragile state of coral reefs in the South Pacific. Technical Specifications