Comedians Simon Pegg & Michael Ian Black write the screenplay (sweet). David Schwimmer directs (shrug). Pegg (still hot off Shaun of the Dead and Hot Fuzz) stars as Dennis, a slightly overweight loser who ditched his pregnant fiancée (Thandie Newton) at the altar five years ago. He tries everything he can to win her back, but fails. When he finds out she's about to marry a successful American (Hank Azaria), Dennis vows to get his life in order, starting by competing in the London Marathon. This is your basic mainstream rom-com, but Pegg is deft at handling the slapstick stuff.100 minutes PG-13.