Blade Runner (only one of the cooler sci-fi movies out there, which stars Han Solo at that!) is being re-released in a Final Cut version which will see a new transfer of the film to hi-def and (I think) some tweaks to the actual film.
Here is a beautiful article on the transfer from the negatives to hi-def format and was very informative on how they take old film stock and digitize it.
Read the article here.