Prepare to crank those amps up to eleven.

But they weren’t all winners. In fact, quite a few ’50s monster movies were extremely rough around the edges. But, of those lesser films, some of them continue to hold a compulsively watchable charm.

Classic sci-fi movies produced many famous monsters, but only a few have truly stood the test of time. Often pushing boundaries onscreen, the sci-fi genre has long been a playground for filmmakers to ...