Run Fatboy Run is a 2007 British comedy film directed by David Schwimmer, written by Michael Ian Black and Simon Pegg, and starring Pegg, Dylan Moran, Thandie Newton, Harish Patel, India de Beaufort, and Hank Azaria. It was released in the UK on 7 September 2007, in Canada on 10 September 2007, and in the United States on 28 March 2008. Dennis Doyle (Simon Pegg) is about to marry Libby (Thandie Newton), his pregnant fiancée. However, he gets cold feet and runs away on the day of the wedding. Five years later, Dennis discovers that Libby, who has their son, Jake, has started seeing high-flying go-getter Whit (Hank Azaria) and realizes what he has lost. He finds out that Whit is running the Nike River Marathon in London, and to prove himself to his doubting friends and, most importantly, Libby and his son, he decides to run the race himself. He receives motivation from his two "coaches", Gordon (Dylan Moran), Libby's cousin and Dennis' best friend who has made a hefty bet on Dennis succ. …