If anyone can shake up summer, it's comic tornado Melissa McCarthy. Just watch the trailer for Tammy, in which she robs a fast-food joint, set to the rap of "Gangsta's Paradise." The lady is one of a kind.
Originality is otherwise MIA, no matter how many thrills are sparked by the usual sequels (22 Jump Street, Dawn of the Planet of the Apes), remakes (Hercules), retooled monsters (Godzilla), retread action figures (Transformers: Age of Extinction) and return visits from comic-book heroes (Spider-Man, X-Men, Teenage Mutant Ninja Turtles). Even comedy is going back to the well: Neighbors, with Seth Rogen, revives the spirit of Animal House, and A Million Ways to Die in the West is a Blazing Saddles for millennials. Out of 100-plus summer contenders, here's a selective guide on how to separate the flash from the trash. By Peter Travers