Well, the source is very bad, so I can't say you've done a bad job.

But it just looks very overfiltered to me. The background basically has lost any texture and is just smeared completely out.

This is most evident when Luke has just entered the building, compare the original wall texture to the new - all detail is lost.

I suggest cutting back a little on the filtering so you don't lose too much detail. Of course that's the real trick, finding the perfect middle ground between filtering and too much filtering. :)

How are you doing this? A general filter chain or hand-cleaning each frame, or a combination?

Good luck anyway! :)