A new red-band trailer has been released for Judd Apatow's new comedy, This Is 40.  The Knocked-Up spin-off follows Pete (Paul Rudd) and Debbie (Leslie Mann) as they try to navigate new challenges to their careers, parents, marriage, and children.  Since Apatow films about 26-days of ad-libbing, a third of the jokes in this trailer aren't in the movie even though the film is over two-hours long.  That's not to say that movie isn't funny, but it's odd to use jokes to sell the film and then decide those jokes weren't good enough for the final cut.

Hit the jump to check out the trailer.  The film also stars Megan Fox, Albert Brooks, John Lithgow, Chris O'Dowd, Jason Segel, Maude Apatow, and Iris Apatow.  This Is 40 opens December 21st.

Via Funny or Die.

This is 40 Red Band Trailer from Paul Rudd

Here's the official synopsis for This Is 40:

Writer/director/producer Judd Apatow (The 40-Year-Old Virgin, Funny People) brings audiences This Is 40, an original comedy that expands upon the story of Pete (Paul Rudd) and Debbie (Leslie Mann) from the blockbuster hit Knocked Up as we see firsthand how they are dealing with their current state of life.

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