Simply put this is a fantastic 'fun' movie. The dark humour is perfectly balanced and fits snugly in the story without stepping over the line that may insult or even alienate some viewers. Indeed the film will appeal to a variety of people, casting it's target audience nets far and wide.
Kudos to the DoP, the cinematography in this film is fantastic and solid throughout. There was never a dull shot I thought was out of place, it suited and told the story well. Not far behind is the lighting which is also incredible. So many shots stick in my mind, and I'm sure I may even borrow a few of the lighting arrangements on my own productions.
Acting is also good, something which has also been picked at. Pegg pulls off a surprisingly good American accent as does his female counterpart. It was also nice to see Schwimmer on the big screen again, the role shows a small detour from his usual characters. I found the characters were believable in their relationship to one another, something which is very difficult to establish in the time it accomplished.
I suggest people give this movie a chance. Make your own minds on what you think rather than rolling with what the critics say. The film isn't a masterpiece by any means, just bloody good fun.