Question: are the daughters in this is 40 sisters?
Answer: Judd Apatow on Casting His Daughters and Their Dramatic Onscreen Arguments (Video) ... Apatow cast his and Mann's two daughters, Maude (14) and Iris (8) as the children of Pete (Paul Rudd) and Debbie (Mann) in the upcoming film, returning them to the expanded versions of the parts they played in 2007's Knocked Up.