Assassin's Creed: Director's Cut

How do you disable the huge black bands on the top and bottom? I use 1280x1024 LCD and a huge ammount of screen is taken up.

I'm pretty sure the game is widescreen only...
I finished this last night. Had heaps and heaps of fun (was quite suprised actually), however some of the assassinations and the last couple of hours were crap. Endless sword fights and no option of stealth is very meh. I think overall a 8/10 is a good score. I look forward to the sequal :)