Premise: The Wild Bunch is a computer game released in 1984 for the ZX Spectrum and 1985 for the Amstrad CPC by Firebird Software. Despite its name, it has no relation to the 1969 film but is set in the Wild West. The title refers to a fictitious gang of outlaws featured in the game, loosely based on the real Wild Bunch gang who were prominent in the 1890s.
Hypothesis: The Wild Bunch computer game released in 1984 is based on the movie that was in theaters 15 years prior.