The back of the DVD box promises a "hilarious, irresistably genuine comedy," but it's actually one of those comedies that forgets to be funny at all. The front of the DVD box says "two thumbs up," but I can't imagine this didn't involve the critics' loved ones being kidnapped by the filmmakers.
So much for picking up something on impulse from Blockbuster.
The movie's main characters are self-absorbed and whiny, but not in interesting ways. Most are going through stereotypical crises, which are developed with predictability and without wit. The main character, played by Zach Braff from Scrubs, is fearful of commitment to his pregnant girlfriend, which he demonstrates by taking up with a much younger college student. That doesn't work out, as he would have known if he'd watched any of hundreds of better movies than this one.
Tom Wilkinson saves this movie from utter dreckdom by giving a solid and real performace. It's claimed that the script is by Paul Haggis, who also wrote Casino Royale, Million Dollar Baby, and Crash; I've seen those movies, and it's hard to believe that could possibly be true.