Michael Rennie arrives on earth in a space ship with an invincible robot and a message for the people of earth. However the military just want to kill him. This is one of the best cold / anti nuclear war era sci-fi films from director Robert Wise. This is one of the classic sci-fi films of the early 1950's, with that genre of flying saucers and aliens visiting earth.
4/5 
Michael Rennie
Patricia Neal
Sam Jaffe
Hugh Marlowe