(Apparently embedding is disabled because Youtube won't allow it to be embedded, rather than the uploader. Insert formless obscenities here.)
In fact, I think there are probably a lot of movies that would be better without dialog. Off the top of my head, I'll nominate: Ken Russell's Salome, which is gorgous to look at but absolutely intolerable to listen to, and The Cell. I guess 2001 would work pretty well too, since it's almost silent already. I think you could make a pretty good go of Bill and Ted this way, too.