I found I Now Pronounce You Chuck And Larry to be very funny. As far as the stereotypes, I do agree that there was a message to making fun of the gays and lesbians which is nice but we were learning nothing by having them stereotype a bunch of other people. I also believe the Biel/Sandler feely touchy scene was unnecessary and not really funny. I was watching this with my mom and didn't feel uncomfortable but I also didn't find it so hilarious or realistic (not saying it wouldn't happen but usually won't).
Now I mentioned that there is a point to
making fun of gays and lesbians, and I suppose also to Sandler being a womanizer because he learns that that is not real happiness, that although fun when true love comes along fun doesn't even compare. It teaches us to be tolerant, as I'm sure we've already heard, and to add to that, unlike many, I found it to be incredibly hilarious, more than having a meaning I believe this movie was meant to be comedic, which it was, but not oh so completely stupid that it was pointless like Epic Movie, which although (very) funny had nothing else to it. There are other lessons which you can read about briefly in the csm review.