Run, Fat Boy, Run
I like Simon Pegg, but I'm used to seeing him under the direction of Edgar Wright. So it was an interesting experience to see him plugged into a decent, if fairly typical, romantic comedy. The character is very Simon, but not the one I'm used to from Shawn of the Dead or Hot Fuzz.
Hank Azaria is fun as the new boyfriend, but the girlfriend didn't strike me as having much personality, and could have been played by almost anyone. Well... any actress. Hmmm... Maybe a good crossdresser, even. Where was I? Oh, yes. The point is, her role didn't make much of an impact on me.
At any rate, rent this one if you want to see Simon Pegg stretching his legs (in both senses), then go back to watching SotD and HF.