After his TV star girlfriend, Sarah Marshall (Kristen Bell), breaks his heart, Peter (Jason Segel) wants nothing more than to enjoy his vacation in Hawaii. But there are two big problems: No. 1, Sarah's vacationing at the same resort; No. 2, she's bringing her new beau. Mila Kunis, Paul Rudd and Bill Hader also star in this madcap relationship comedy from hit producer Judd Apatow (Knocked Up, Superbad).