An overweight man leaves his fianc?e on their wedding day, only to realize years later that she's the one and only woman of his dreams in a romantic comedy that reunites Big Nothing co-stars Simon Pegg and David Schwimmer, this time with Schimmer in the director's chair. It's not easy to win back a woman after leaving her at the altar, but when an out-of-shape man finally realizes just what a mistake he's made, he vows to run a high-profile marathon in order to convince his ex-fianc?e that the rich and handsome man she's about to marry isn't the guy for her.