klokwerk: I can send you the filterchain once I get it, but bear in mind that it probably won't work for your videos. That's because this source in particular is not exactly blocky, it has horrible aliasing and texture issues and has very little camera movement. If what you have is videos with lots of blocking, I have a filterchain (again, suggested by someone and tweaked my me) that is designed to remove heavy macroblocking. I can show you before-after comparisons via PM if you want.
Let's stay on topic though: do you know of any video interviews with Jane Jensen or the voice actors about the GK saga? Also, do you know if anyone around here would make a videoclip from the game's cutscenes?