If you have spent the past two weeks refreshing theater listings for an IMAX 70mm ticket to The Odyssey, your persistence may finally pay off.IMAX has extended Christopher Nolan's blockbuster in the coveted format through Sept. 16, nearly a month beyond its previous Aug. 19 end date. New screenings appeared on IMAX's website Thursday July 30, although the additional dates did not exactly eliminate the competition. The AMC app placed moviegoers in a digital queue as tickets were released.

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The problem is partly one of supply. Only 25 theaters in the United States and 41 worldwide can project the physical IMAX 70mm reels used for the movie. Other theaters offer digital IMAX screenings, but those versions may be cropped depending on the auditorium rather than displaying the full, towering image captured by the cameras.

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That distinction matters more for The Odyssey than it does for most blockbusters. Nolan's retelling of Homer's epic — starring Matt Damon, Tom Holland, and Anne Hathaway — is the first feature film shot entirely using IMAX film cameras. Previous movies typically used the bulky, extremely loud cameras for action sequences before returning to another format for dialogue-heavy scenes. As a result, their aspect ratios could change throughout the movie. The Odyssey fills the screen from top to bottom for its entire 173-minute runtime.