Neither as subversively fun as last year’s megadestructive Project X, nor as creative as The Hangover (on which these codirectors broke through as screenwriters), this further installment in the millennials-acting-badly genre serves as a distinctly average placeholder. Two best friends turn into the angel and the devil on the shoulders of their straight-A buddy (Justin Chon), about to come of legal drinking age. During their wild night, the pleasures (stingily served up for this MPAA rating) run along the typical hetero–douche-bag axis: breaking into a sorority, upchucking during a mechanical bull ride, etc. Still, watch your bro-based audience squirm when two of our heroes are forced to lock lips, then take a stroll across campus nude except for carefully placed tube socks.