Capricorn One (1978)
Plot:
A NASA Mars mission won't work, and its funding is endangered, so they decide to fake it just this once. But then they have to keep the secret... (Note: licensees are to use the embedded videos for preview purposes only and they should obtain full-length versions for their public performance needs.)
Director:Peter Hyams
Starring:Elliott Gould, James Brolin, Brenda Vaccaro, Hal Holbrook, Sam Waterston, O.J. Simpson