The ending is absolutely horrible.

Rating: 3/10 (2 February 2008)

This movie starts out very funny. The bathroom zipper scene is a gut buster. Ben Stiller's pre-date prep scene is extremely funny.
Matt Dillon's attempts to pick up Mary, especially when trying to fit in and making comments about his job and hobbies is very funny. The lamp/dog scene is also hilarious.
The "hair gel" scene is crazy funny. Chris Elliot also offers some good laughs.
The rest of this movie is at times over the top and out of control.
The ending of this movie is so stupid and terrible it can't be explained in words. It is absolutely wretched. It will make you nauseous and queasy. The movie just dies in it's own stupidity at the end and will leave you frustrated and angry.
Plus we have to put up with Brett Farve, who can't act his way out of a paper bag. Seriously, he is even worse than the end of this movie.
So if you want some great laughs, watch the first hour and then turn it off, because the ending is absolute garbage.