Freaking hilarious. I liked this movie from beginning to end and laughed all the way though.
Jim Carrey plays Carl, a "no man" not living his life, sitting around sulking since he got divorced 3 years before. The plot contrives to get Carl to a seminar "Yes - the new No" and his new life begins.
I can't really describe all the funny scenes without giving things away - just enjoy. Well worth your time.
I know some people are saying they don't like Jim Carrey and they won't watch it. It isn't that the movie NEEDED Jim Carrey to be good - he was quite NOT like the Jim Carrey from "Liar Liar" or "Ace Ventura". So, if you don't know if you like Jim Carrey, this would be a gentle introduction.
The worst part about the movie was Rhys Darby's character. Not that I dislike Rhys Darby - he is hilarious, but the entire character seems like a bit of an add-on with little thought to how he integrated into the rest.
Still - well worth watching.