Really the only version worth watching, although the UK-produced sequel “Curse of the Fly” (1967) does have George Baker, who had a brief role as Number 2 in The Prisoner a few years later and went on to have a long and prosperous career in theatre and on TV.
The Fly is a 1958 American science-fiction horror film, directed by Kurt Neumann. The screenplay was written by James Clavell (his first), from the short story “The Fly” by George Langelaan. It was followed by two sequels, Return of the Fly and Curse of the Fly. It was remade in 1986 as a film of the same name by director David Cronenberg.
Scientist Andre Delambre (David Hedison) is found dead with his head and arm crushed in a hydraulic press. Although his wife Helene (Patricia Owens) confesses to the crime, she refuses to provide a motive and exhibits a number of strange behaviors. In particular, she is obsessed with flies, including a supposedly white-headed fly. Andre’s brother, Francois (Vincent Price), lies and says he caught the white-headed fly and, thinking he knows the truth, Helene explains the circumstances surrounding Andre’s death.