Just picked this up and was disappointed to see the framerate completely tank in the very first full motion intro video upon starting a new game. Not going to be able to enjoy the game if I can't see the freakin cutscenes. I even tried dropping down the game resolution and it still stutters and stops in the same places.

Windows 7 64-bit
AMD Radeon HD 6800
I don't know, will any further info help?