The video is very dark on my system, I'm going to burn a disc and pop it in the PS3 to see if it still looks dark there.
Nearly everything looks pretty seamless so far, I haven't been popped out of the viewing experience by anything jarring due to SD sources or anything. It's all very well done.
As a total nit-pick, the comped in Dewback outside the cantina looks a little video-green in tone, it is the only thing that jumped out at me as an obvious comp. I had a play with it and pulled the green secondaries down a bit and it seemed to blend into the plate a little better.
This is the shot I mean
http://www.flickr.com/photos/37624864@N08/8562447974/in/photostream/lightbox/