Just go during matinee(sp) pricing, I saw it, it is pretty good. If your theatre really doesn't have matinee look for some sort of deal for older movies. My theater has the five buck club, so 5 dollars for a movie that has been out for two weeks. Then when you see 10 movies we send you free tickets.
I also saw wall-e last night too and thought it was a little disappointing, it wasn't bad, but it wasn't good.