A Christmas Carol starring George C. Scott is my #2 Son's favorite of the Scrooge movies. It is a good one. Scott is mean and devotedly business-like at first without being a miserly caricature and is utterly convincing post-conversion. The weakest link in my opinion is his nephew Fred, who just seems whiny. I find the background music oppressive, but no one else seems to.
David Warner (in Grail, a Babylon 5 episode) is Bob Cratchit, and Susannah York is his wife. The Tiny Tim in this version actually looks like he is sickly. The woman who plays Mrs. Dilber here plays the same role in the Patrick Stewart version.
You can watch it on youtube in parts. (This is gone as I check on 12/1/2009, and I can't easily find a trailer or clip online.))