I couldn't agree more. The worst thing was that other people in the cinema were laughing. I just didn't find any of it funny in the slightest. Bruce Willis was the best thing in it and he's probably the least obviously cast "quirky" actor in the film. Submarine did this kind of thing so better.
I just felt that like you said, the story was good, but it could have been handled better by pretty much any other capable director.