Watch The First Trailer For This Is 40 [VIDEO]

From the guys that brought you Knocked Up, we finally have a trailer for the spin-off/sequel This Is 40 and you can watch it below. Directed by Judd Apatow, the film sees Paul Rudd and Leslie Mann reprising their roles as Pete and Debbie. In Knocked Up, they were a loving but dysfunctional married couple trying to help Debbie's sister, Alison (Katherine Heigl), deal with her unplanned pregnancy. Now, in This Is 40 they're trying to come to terms with turning that fateful age, 40. The trailer gives us a little insight into the tone of the film, and it looks to be chock-full of Apatowian humour (that's a word, honest) but with plenty of heart to go along with it. This Is 40 also stars Melissa McCarthy, Jason Segel, John Lithgow and Albert Brooks, and will be released on 21st December in the UK.