Director of hit comedies Meet the Fockers, American Pie, and Cirque du Freak: The Vampire's Assistant.
He wrote the play Mango Tea and found mainstream success as the co-writer of the computer animated film Antz.
He and his brother co-wrote and directed 2002's About a Boy, which earned them an Academy Award nomination for Best Adapted Screenplay.
He was the brother of fellow filmmaker Chris Weitz.
He directed Ben Stiller in Meet the Fockers.