One of the great cult classics, The Blob melds ’50s schlock sci-fi and teen delinquency pics even as it transcends these genres with strong performances and ingenious special effects. The Blob helped launch the careers of superstud Steve McQueen and composer Burt Bacharach.

Nothing will stop it! One of the great monster movies of its era, with little pretense (and a few judicious winks to the audience) and unlabored by allegory (except, perhaps, of American consumerism), The Blob imagines horror as a formless devourer: Amorphous, and increasingly blood-red. Good fun.