Elaborate sight gags are few and far between in contemporary movie comedy, but this Seth Rogen effort has one shot involving an air bag that ranks alongside the biggest laughs of the silent era. Aside from that it’s an energetic, hit-or-miss affair about young parents (Rogen and Rose Byrne) clashing with the fraternity that moves into the house next door (commanded by a perpetually stripped-to-the-waist Zac Efron). Stressed out by work and their new baby, the couple envy the frat boys their freedom almost as much as they resent the noise, which is a funny idea; unfortunately the artless script by Andrew J. Cohen and Brendan O’Brien tends to spell it out in dialogue more than dramatize it through behavior. A later sight gag involving Byrne’s swollen breasts and Rogen getting shot in the face with milk is more gross than funny, but at least these guys are trying. Nicholas Stoller (The Five Year Engagement) directed; with Lisa Kudrow, Ike Barinholtz, Carla Gallo, and Christopher Mintz-Plasse.