Destination Moon (1950)
Destination Moon is a 1950 American science fiction film independently produced by George Pal and shot in Technicolor. The film was directed by Irving Pichel and distributed in the United States and UK by Eagle-Lion Classics. Pal produced the first major U. S. science fiction film to deal with the dangers inherent in space travel and with the possible difficulties of landing on and safely returning from our only satellite.
More at Wikipedia.