 Principal photography took place from April 18 to late May 1955.Later, many costume and prop items were reused in several different episodes of the television series "The Twilight Zone", most of which were filmed by Rod Serling's Cayuga Productions at the MGM studio in Culver City, including Robby the Robot, the various C-57D models, the full-scale mock-up of the base of the ship (which featured in the episode "To Serve Man"), the blaster pistols and rifles, crew uniforms, and special effects shots.At a cost of roughly $125,000, Robby the Robot was very expensive for a film prop at this time; it represented almost 7% of the film's $1.9 million budget and equates to at least $1 million in 2017 dollars.