I had the same problem with my ATI card. If you're using ATI, go to your Catalyst Control Center and see if you have Catalyst A.I. running. If so, disable it and the cutscenes will work just fine. Hope this helps!
I just bought SW: The Force Unleashed II and of course i have small problem with it. Instead of normal cut-scenes i have black screen with sound only. Is a possible to solve this problem or i have to wait for: http://forums.lucasarts.com /ann.jspa?annID=4 ?
Please explain me in simple words what is going on.