This movie is underrated. If you like sweet, funny comedies with heart then I recommend you give this one a try. It's not "laugh-out-loud" funny but it really doesn't need to be. Movies like Juno and Little Miss Sunshine were great in their own way and so is this.
So if you liked the two movies I mentioned earlier then you'll enjoy this aswell :)

This is by far his worst movie (and I've seen Nacho Libre!)
A couple of funny bits when they remake the movies (especially the Ghostbusters effort), but on the whole it's pretty dire.
The story is cheesy, the script is lame & the jokes are so few & far between it makes for quite a gruelling watch.

I guess you will either love it or hate it! I think its great laughed a lot and loved the music! Saw the other reviews and thought i had to write a review i loved it so much i even bought the blu ray after the dvd and got the soundtrack i loved it!