Run Fatboy Run (2007) is a Comedy, Romance film that follows five years after jilting his pregnant fiancée on their wedding day, out-of-shape Dennis decides to run a marathon to win her back. Run Fatboy Run is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 6.2 out of 10 from 734 votes. Fans of comedy movies may also want to explore similar titles below.