I agree about Costner. The guy just has no redeeming acting ability. It makes me cringe to see him act. It's like watching an actor in a high school play.
I saw him on the Tonight Show a couple months ago and he was a complete ass to Jay Leno. Hey, if someone is nice enough to allow you to pimp your movie on his show you better treat him decently. Otherwise you risk not ever getting back on there.