Toutes les scènes où on les voit en apesanteur on été tournées dans un kc 135 ?The actors then traveled to Johnson Space Center in Houston where they flew in NASA's KC-135 reduced gravity aircraft to simulate weightlessness in outer space. While in the KC-135, filming took place in bursts of 25 seconds, the length of each weightless period that the plane performed. The filmmakers eventually flew 612 parabolas which added up to a total of three hours and 54 minutes of weightlessness. Parts of the Command Module, Lunar Module and the tunnel that connected them were built by production designer Michael Corenblith, art directors David J. Bomba and Bruce Alan Miller and their crew to fit inside the KC-135. Filming in such an environment, while never done before for a film, was a tremendous time saver. In the KC-135, the actors moved wherever they wanted, surrounded by floating props; the camera and cameraman were weightless so filming could take place on any axis from which a shot could be set up.
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