One of the most pleasant surprises of a mixed-bag movie summer, Guardians of the Galaxy is something akin to Star Wars on Quaaludes. It's a tongue firmly in cheek throwback to cheesy '80s-era B-grade sci-fi movies that is equal parts goofball comedy, cartoony action, and general weirdness. The movie opens with a brief prelude: A young boy named Peter Quill is inexplicably abducted by aliens shortly after a personal tragedy.