Brave, while not Pixar's best movie, is still a great original fairy tale. Abraham Lincoln: Vampire Hunter on the other hand, is mostly boring and way too self-serious, but is redeemed at least a little bit by some fun vampire fight scenes. You'll likely get at least some enjoyment out of either movie, but I'd recommend Brave over Lincoln any day.
Which one will you go see this weekend? Or will you go see this week's less fantastical fare, Seeking a Fr