Television and films that include core elements of science fiction, but can cross into other genres. They have been released to a cinema audience by the commercial film industry and various television studios, and are widely distributed with reviews by reputable critics.
This period is sometimes described as the ‘classic’ era of science fiction theater. Much of the production was in a low-budget form targeted at a teenage audience. Many were formulaic, gimmicky, comic-book style films. They drew upon political themes or public concerns of the day, including depersonalization, infiltration, or fear of the nuclear age. Invasion was a common theme, as were various threats to humanity