Star Trek 2: The Wrath of Khan

Not only a movie sequel, but a follow-up to the 1967 TV series episode Space Seed, in which Captain (now Admiral) Kirk exiled cosmic renegade Khan to the outer limits, where he's been hatching revenge ever since. Foregoing the special effects bonanza of its predecessor, it settles for low camp humanoid melodrama. The ageing Shatner and his equally self-amused Enterprise cohorts now 'boldly go' wreathed in soft focus, smiling down on a shipful of apprentice Trekkies until summoned to urgent comic strip action when Khan threatens to reverse creation with a destructively-wielded Genesis device. The net effect, between embarrassed guffaws, is incredulity: a movie at once post-TV and pre-DW Griffith.