I absolutely love going to the theatre on occasion. I don't like to go often (more than once every month or so), but as others have mentioned, it makes for a great outing.
As iago mentioned, I don't normally have problems with cell phones, people talking, etc. It definitely does happen, but not nearly enough for me to decide not not go to the theatres.
Tickets at one of the nicest theatres in Fort Collins are $6.50 with a student discount. They really don't care if you go to school in Fort Collins, either. When drake came up and we went to see a movie, he showed his student ID from our rival university (not that I care, but most people that give a crap about the sports teams do) and they didn't even flinch when they gave him the discount.