Leslie Mann and Paul Rudd have signed on to star in Judd Apatow's next comedy, which sees the stars reprising their roles from Knocked Up in the untitled comedy set to release summer 2012.

According to Variety, Judd Apatow will write and direct the film, which will shoot this summer.

In Knocked Up, Leslie Mann played Katherine Heigl's older sister, who is married to Paul Rudd's character. The plot details are vague, and it's not clear whether Katherine Heigl or Seth Rogen would reprise their roles from Knocked Up, one of Judd Apatow's biggest successes at $200 million worldwide.

Universal will distribute and production would begin later this year for a June 1, 2012 release.