You're smarter than I am. I figure if I paid 8 bucks for a movie ticket, I'll sit through it. I've never walked out of a movie, no matter how lousy it is. (And I've suffered through some stinkers.)
But this is what gets me, look at the movies that are out (or will soon be out), ie: Bewitched, Dukes of Hazzard, Star Wars Episode 3, Willy Wonka, all remakes or sequels. Can't somebody in Hollywood come up with a new idea?