I know it's popular opinion to hate on the voice over version of Blade Runner originally released, but I don't. Maybe the fact that I saw the original version first helps. (It seems to me a lot of the people really against the voice over version, saw it after the "Director's Cut".) Yes, Harrison Ford phones it in, but that only adds to the noir feel of the film. (Really, it pretty much gives the movie a film noir feeling all by itself.) It also helps me accept the movie as a separate entity from the book. Watching the "Director's Cut," I tend to get mad about all the stuff they cut from the book.
I would stop the projector five minutes before the end though. The ending they tacked on is disgusting anyway you look at it.