Flight to Mars is a 1951 American Cinecolor science fiction film drama, produced by Walter Mirisch for Monogram Pictures, directed by Lesley Selander, that stars Marguerite Chapman, Cameron Mitchell, and Arthur Franz.
The film's storyline involves the arrival on the Red Planet of an American scientific expedition team, who discover that Mars is inhabited by an underground-dwelling but dying civilization that appear to be human. The Martians are suspicious of the Earthmen's motives. A majority of their governing body finally decides to keep their visitors prisoner, never allowing them to return home with the information they have discovered. But the Earthmen have sympathizers among the Martians. Soon a plan is set in motion to smuggle the scientists and their Martian allies aboard the guarded spaceship and make an escape for Earth.