Run, Fatboy, Run movie synopsis: Five years ago Dennis (Simon Pegg) was at the altar about to marry Libby (Thandie Newton), his pregnant fiancée. He got cold feet and ran for the hills and he's been going in circles ever since. When Dennis discovers Libby's hooked up with high-flying-go-getter Whit (Hank Azaria), he realizes it's now or never. He enters a marathon to show he's more than a quitter, but then finds out just how much sweat, strain and tears it takes to change. Nobody gives him a chance, but Dennis knows this is his only hope to be more than a running joke.
Box Office: The film topped the UK box office in its opening week and remained at the top of the chart for four weeks. To date it has earned over £10.5 million. In the United States, the film enjoyed limited success. On its opening weekend, it grossed about $2.3 million . As of May 1, 2008, the film has grossed $5,946,628 in the US and Canada, making $29,039,566 in the rest of the world, for total of $34,986,194 as its global gross.