Well said, Alex.
I don't go to a lot of movies anymore, and when I do, I seem to spend a lot of time thinking, jeez, I've seen this before, MANY times.
I like to read movie criticism, but it has nothing to do with making a decision to see a movie. I just enjoy hearing other points of view. I particularly like it when a critic either lambastes something he or she despised or rhapsodizes about something that worked. As long as the writing is good, I'll keep reading, even if I don't agree.
Before any given trailer is over, I know if I want to see something or not. If I am really jazzed about it, no number of poor reviews will keep me away. Oh, and if its a shark movie, I'm going. (*sigh*)
I am only mildly curious about Da Vinci Code, and really mostly about how much of the controversial stuff gets left in. It's most likely a rental for me.