I'll tell you right now, I hate depressing movies disguised as comedies. The worst offender ever: Mrs. Doubtfire. Robin Williams dresses up like an old nanny so he can spend time with his kids. There's comedy there, but the whole movie is under the dark cloud of the depression of a man who is separated from his children. How sad.
In a similar vein, Will Farrell, who has been hilarious in several movies and on Saturday Night Live, tries to be funny in a depressing movie. He plays a somewhat successful businessman whose struggle with a drinking problem gets him into trouble and gets him fired, after some business trip revelry which included a tryst with a female colleague. So he gets fired, and when he gets home his wife has left, changed the locks on the house, and moved all his things out on the lawn. He "moves in" to his front yard and contemplates getting his life back together.
Bottom line, 2 stars.