According to The Hollywood Reporter, Anne Hathaway is joining the cast of Universal Pictures' Knocked Up. The actress, who most recently played Jake Gyllenhaal's icy wife in Brokeback Mountain, is set to star opposite Seth Rogen, Paul Rudd and Leslie Mann in the Judd Apatow romantic comedy.

Apatow is writing, producing and directing the movie, which follows a twentysomething guy who finds out he impregnated his one night stand.