Seth Rogen plays Mac Radner, a cubicle drone who married his college sweetheart, Kelly (Rose Byrne), spawned a baby, and has just become the first in his friend group to buy a house. The Radners are convinced that now little Stella (twins Elise and Zoey Vargas) is six months old, they'll transition into the cool parents who can take their baby to a rave.
When a fraternity moves in next door, Kelly and Mac are stoked to attend an all-night party within range of their baby monitor. But as all-night transitions into every night, they admit that they just can't hang. And once the cops get called, it's war. This sounds like squares versus slobs, a recipe for stupid pratfalls, and there's plenty of them. But Stoller and his screenwriters are too smart for simple stereotypes: This is family versus family, and neither house has the upper moral hand.
Here, Zac Efron as the frat president gets his Brando moment -- a wheelchair-bound meltdown worthy of Colonel Kurtz -- while showing off his subtle comic timing. But Byrne is the movie's MVP thanks to a script that does what few comedies allow: let the wife earn some laughs. She's so funny that you wonder once again why the Sandlers and Apatows of the world waste their women by writing them as shrews. Is Hollywood the ultimate fraternity? Maybe Byrne can break up that party, too.