Recently went to a screening of the 1922 Nosferatu with a live accompanist creating an improvised soundtrack on violin, piano and waterphone - which was not an instrument that I had not encountered before, but evidently features in the score of The Matrix, Aliens and a range of other films. I can certainly see why - it was extremely atmospheric. I had seen Nosferatu a couple of times before - as well as the 1979 Herzog version, and Shadow of the Vampire (2000) - but this definitely added something new.