This won't be a huge movie review, because I'm still recovering from the emotional catharsis I experienced during this movie. Yes, it was hilarious, but parts of the movie also had me sobbing. (I believe I've documented this before, but just in case I haven't: I'm a big sap who cries at everything.) Excellent performances all around; the stand-out for me was Paul Dano, who played Dwayne, the teenage son of Toni Collette and Greg Kinnear.
Anyway - you should go see it if you haven't already.