Katherine Heigl and Seth Rogen in Knocked Up (2007)

Katherine Heigl and Leslie Mann in Knocked Up (2007)

Seth Rogen and Paul Rudd in Knocked Up (2007)

Leslie Mann, Paul Rudd, Maude Apatow, and Iris Apatow in Knocked Up (2007)

Leslie Mann and Paul Rudd in Knocked Up (2007)

Seth Rogen and Iris Apatow in Knocked Up (2007)

Maude Apatow and Iris Apatow in Knocked Up (2007)

Katherine Heigl, Leslie Mann, Seth Rogen, and Paul Rudd in Knocked Up (2007)

Jay Baruchel, Seth Rogen, Martin Starr, Jason Segel, and Jonah Hill in Knocked Up (2007)

Harold Ramis and Seth Rogen in Knocked Up (2007)

Katherine Heigl, Seth Rogen, and Jonah Hill in Knocked Up (2007)

Katherine Heigl, Jay Baruchel, Seth Rogen, Paul Rudd, Jason Segel, and Jonah Hill in Knocked Up (2007)