The DVD for This is 40. Paul Rudd and Leslie Mann reprise their characters from Knocked Up.

This is 40 stars Paul Rudd and Leslie Mann. The film is from Judd Apatow.

Melissa McCarthy and Paul Rudd star in This is 40. The film also features Leslie Mann.

Paul Rudd and Leslie Mann star in This is 40. The film is from Mann's husband, Judd Apatow.

This is 40 poster. The new Judd Apatow film is a "sort of" sequel to Knocked Up.

Graham Parker stars in this still from This is 40. The "sort of sequel" to Knocked Up is being called Judd Apatow's most personal film ever.

Chris O'Dowd, Paul Rudd, and Lena Dunham star in this still from This is 40. The "sort of sequel" to Knocked Up is being called Judd Apatow's most personal film ever.

Paul Rudd and Leslie Mann star in this still from This is 40. The "sort of sequel" to Knocked Up is being called Judd Apatow's most personal film ever.

Megan Fox stars in this still from This is 40. The "sort of sequel" to Knocked Up is being called Judd Apatow's most personal film ever.

Leslie Mann poses with husband and director Judd Apatow in this set photo from This is 40. The "sort of sequel" to Knocked Up is being called Judd Apatow's most personal film ever.

Maude Apatow stars in this still from This is 40. The "sort of sequel" to Knocked Up is being called Judd Apatow's most personal film ever.

Paul Rudd, Leslie Mann, and Maude and Iris Apatow star in this still from This is 40. The "sort of sequel" to Knocked Up is being called Judd Apatow's most personal film ever.