What about the 1966 movie and the animated movies (Mask of the Phantasm, Sub-Zero, etc)?
I was wondering the same damn thing.
1. Batman (1966)
2. Return to the Batcave: The Misadventures of Adam and Burt (2003)
3. Batman Beyond: Return of the Joker
4. Batman Begins
5. Batman: Mask of the Phantasm
6. The Batman vs. Dracula, based on The Batman.
7. Batman Returns
8. Batman: Mystery of the Batwoman, based on The New Batman Adventures.
9. Batman Forever
10. Batman and Robin.
11. Batman
12. Batman & Mr. Freeze: SubZero, based on Batman: The Animated Series.
13. Batman: Gotham Knight, an anime-styled movie set between Batman Begins and The Dark Knight.
Not seen The Dark Knight and I don't count the Justice League.