Surprisingly, really good.

Rating: 8/10 (3 August 2006)

We watched this film during the preview, and it seemed like almost everybody had a great time with a lot of howling laughs from the opening to ending scenes.
From the trailer, I was expecting pure, brute-force slapstick stupidity, but the comedy surprised me with its unpredictability. From the trailer and a few outtakes during the credits, it looks like the actors did many takes of most scenes. Don't envy the trailer editor; most of the quirky jokes are hilarious within the context of the relevant scene and or the movie only.
Will Ferrell was a lot of fun, and the supporting actors make it worthwhile to see too. Gary Cole is great as the scoundrel father, and the scenes with the kids are funny too.