This Is 40 is a 2012 American realistic comedy film written and directed by Judd Apatow and starring Paul Rudd and Leslie Mann. A "sort-of sequel" to Apatow's 2007 film Knocked Up, the movie centers on married couple Pete (Rudd) and Debbie (Mann), characters introduced in the previous film, whose stressful relationship is compounded by each turning 40. John Lithgow, Megan Fox, and Albert Brooks appear in supporting roles.