Irving Block, and Louis DeWitt. The idea of an alien machine absorbing energy is similar to the giant alien machine from the later (1966) Star Trek television episode "The Doomsday Machine" which destroys planets and uses them to fuel itself. George O'Hanlon, who plays Dr. Arnold Culver in the film, had just finished his popular series of Joe McDoakes comedy shorts and would be later known as the voice of George Jetson in the popular cartoon series The Jetsons. Reception Critical response When the film was first released in 1957, Variety gave the film a favorable review: "Kronos is a well-made, moderate budget science-fictioner which boasts quality special effects that would do credit to a much higher-budgeted film ... John Emery is convincing as the lab head forced by the outer-space intelligence to direct the monster. Barbara Lawrence is in strictly for distaff interest, but pretty". Film critic Dennis Schwartz was disappointed in the film's screenplay and acting. He wrote, "German emigre to Hollywood, Kurt Neumann (Tarzan and the Amazons/Son of Ali Baba/She Devil), directs this b/w shot, dull, so-so sci-fi film, that's played straight-forward, is humorless and all the thespians are wooden. It's based on the story by Irving Block and the weak script is written by Lawrence Louis Goldman". See also List of American films of 1957 References Bibliography Warren, Bill. Keep Watching the Skies: American Science Fiction Films of the Fifties, 21st Century Edition. Jefferson, North Carolina: McFarland & Company, 2009, . External links Kronos information site and DVD review by Glenn Erickson at Savant Review Original soundtrack CD of music from Kronos 1957 films 1950s science fiction films 20th Century Fox films CinemaScope films American science fiction films Alien invasions in films American black-and-white films Films about scientists Films directed by Kurt Neumann Giant monster films American robot films Films scored by Paul Sawtell 1950s English-language films 1950s American films