Famous kid cameos
Maude and Iris Apatow – Despite being rated R for crude language and nudity, Judd Apatow's new flick “This is 40” is a true family affair. The mid-life crisis comedy stars Apatow’s real-life wife Leslie Mann and two daughters Maude and Iris Apatow... oh, and Paul Rudd, too (who might as well be a member of the family, having starred in so many Apatow productions). Maude and Iris also appeared in Apatow’s 2007 comedy “Knocked Up,” which “This is 40” is a “sort of sequel” to. It would appear that “funny” is in the young Apatow girls’ blood, as the sisters manage to hold their own against some serious comedy heavyweights in the film. But as the next person on our list demonstrates, putting your kids in the movies can sometimes backfire terribly.