I suppose there have been flimsier inspirations for movies than Rampage, the 1980s arcade game that has players assume the forms of giant monsters who try to demolish entire cities before the military demolishes them. Inspirations such as, say, the Strawberry Shortcake doll, or My Little Pony. But I'll be damned if I could think of any examples while being pummeled by the thunderous stupidity and terrible jokes of the new action blockbuster Rampage, a work that somehow makes its director Brad Peyton's previous Dwayne Johnson adventure San Andreas look like the magazine-cover subject for Cahiers du Cinéma.