The storylines are implausible and threadbare to say the least and everything hinges on the screwball comedy chemistry of the two leads. This might get a bit tiring as the dialogue is not as sharp and funny as it could be and Toby Stephens' character seems very limited.
Lucy Punch (phwooar) is extremely good and like the running joke with the café owner who always catches her out on a 'cause I'm black' wind up.
She's in Woody Allen's latest movie as well.