Good watch, probably won't watch again, but can recommend.
I'm not the biggest fan of Vince Vaughn, but this is not the typical Vince Vaughn movie.
He usually plays some immature, selfish man-child, and...that's true here, but this is somehow positioned after his other roles where he wants to turn over a new leaf, for his 500+ kids.
The concept alone is enough to make the movie work, it's heavy in a charming and heart-felt way, and definitely makes the movie the experience it is.
I honestly think almost any decent actor could have filled the role, and probably better. It's a barely redeemable character, and having it be Vince Vaughn doesn't help me.
I honestly think this would be better done as a series where we get more interaction with the different kids, which is by far the most interesting part.
Worth a watch, but I don't see a lot of people re-watching this one.