I'm of the feeling that if you just walk into a movie without doing any research into what it's about doesn't mean the theater should be forced to compensate you for your lack of foresight.

There have been some movies where I went "Why am I watching this?" and I'm definitely left the theater thinking "I just wasted 8 dollars and 2 hours of my life" but it's not the theater's fault. If anything, it's the person who made the movie and the person who advertised the movie. And myself, for thinking I'd enjoy it.

I'm trying to think of an example that would correlate, but I'm having trouble finding something comparable.