IMAX

Filming an IMAX 3D feature about NASA's last manned mission to repair the Hubble Space Telescope created challenges that even Christopher Nolan's crew never faced on the set of "The Dark Knight." Using only eight minutes of film, astronauts had to capture the essence of five long spacewalks using a custom-made IMAX camera as big as a submarine. Thankfully, IMAX director and producer Toni Myers was there to help.

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