It's funny EX-Drummer is on that list. I never considered it a drumming movie, but I guess it is (?). The movie is more infamous for it's shocking scenes of violence and rape then the music (which is actually quite good). It isn't one I would recommend unless you're not easily offended and/or a fan of the more extreme side of cinema.
Edit: Oh and I didn't even notice Four Flies on Grey Velvet. I've never seen it, but it is a famous violent Giallo film by master horror director Dario Argento. I had no idea this one featured drums or a drummer, might have to check it out now.