Originally posted by: Doctor M
I suppose the workprint could be used as a guide for the restoration.

That's not really necessary. Yeah, the workprint is about 20mins longer, but it's not a director's cut of any sort, it's just a rough cut. A lot of the scenes in it are alternate takes and most of the deleted stuff are very minor shots, lines of dialogue and just tighter edits of the same shots that appeared in the final cut. It's an interesting "work in progress" version, but the theatrical version should still be considered the definitive version of the film.