For one, the cinematography was kind of crappy. There were very few creative shots, and many were badly framed. And in every scene where they were in the car (there were a lot) there was always this awful glare on the windshield. Every time there was this type of scene it was so off-putting because the sound was perfectly audible but we were watching from outside the car??? Also, it seemed like the editing done by Thelma Schoonmaker (The Departed, Wolf of Wall Street) was more salvaging than getting to do creative cuts and all that jazz.
Overall, it was a cute movie, but I definitely wouldn't see it again.