simon pegg jilt his pregnant fiancée at the altar and but come to regret it five year later when he meet the new man in his ex girlfriend life and a successful american hedge fund manager . pegg and worry that the new man will supplant him in his five year old son affection and plan to win his former girlfriend back by run the london marathon . with a fortnight training . and entirely predictable result . have enjoy shaun of the dead and hot fuzz and i be really look forward to this one . but sadly and it fall well short . it difficult to muster much sympathy for pegg character and and hank azaria ( voice of moe the bartender and apu and chief wiggum in the simpson ) be waste a pegg rival . dylan moran be dull and too . thandie newton look gorgeous and but that not really enough . i be amaze that this have do so well at the british box office . but if i be you and i wouldn not bother .