how did they do the zero gravity scenes in apollo 13
Apollo 13 (film) While planning the film, director Ron Howard decided that every shot of the film would be original and that no mission footage would be used.[13] The spacecraft interiors were constructed by the Kansas Cosmosphere and Space Center's Space Works, which also restored the Apollo 13 Command Module. Two individual Lunar Modules and two Command Modules were constructed for filming. While each was a replica, composed of some of the original Apollo materials, they were built so that different sections were removable, which enabled filming to take place inside the capsules. Space Works also built modified Command and Lunar Modules for filming inside a Boeing KC-135 reduced-gravity aircraft, and the pressure suits worn by the actors, which are exact reproductions of those worn by the Apollo astronauts, right down to the detail of being airtight. When the actors put the suits on with their helmets locked in place, air was pumped into the suits to cool them down and allow them to breathe, exactly as in launch preparations for the real Apollo missions.[14]