Besides the aforementioned:

HOW THE WEST WAS WON (this one has to be seen to be believed, it looks so good)
2001: A SPACE ODYSSEY
BLADE RUNNER
CASABLANCA
the early 007 films, esp. DR. NO
THE ITALIAN JOB, THE IPCRESS FILE, BLACK NARCISSUS (all cheap UK imports)
GONE WITH THE WIND
NORTH BY NORTHWEST

and many, many more.

Best to check for disc quality feedback at places like the Home Theater Forum, AVS Forum or DVD Beaver.