Superhero movies are sometimes better when they try to be something other than a superhero movie. The strength of Christopher Nolan’s The Dark Knight is that it’s a terrific crime flick that treats its hero like any other doomed noir protagonist. The appeal of Guardians of the Galaxy is that it’s the great, trashy Star Wars rip-off that so many attempted but that never quite happened in the 70s and 80s. And what makes Ant-Man so fun is that its heart is in the classic heist movie. Even Christophe Beck’s music score is as ready to support Steve McQueen robbing a bank in the 1960s as it is in pushing Paul Rudd along as he figures out how to work Michael Douglas’s incredible shrinking man suit to execute a theft to save the world. It’s cinematic soda pop, high on the fizz and sugar. Its sentimental heart tugs are pure empty calories (Paul Rudd has an adorable pre-school daughter who loves him despite his reputation as a criminal, aw shucks), but the clever action is the sweet bite that keeps you going. What are the advantages and disadvantages to a man becoming the size of an ant? And what weird things might he see? This film deals with it all in fine frantic style. We haven’t seen a great shrinking man movie since the 1950s. The idea is ripe for an update. This film brings it with a cool 60s retro costume and an eye-filling wave of seamless CGI. It’s one of the best Marvel movies.