Great to see Dr Phibes included! I'd also put forward for inclusion - Time After Time, Spirited Away, and I think First Men on the Moon could also be Steampunk.
PHIL S: That is quite possible. I have not seen all of these myself. The list is based on a list made by brassgoggles.co.uk. The ones I added myself are the upocoming Alice in Wonderland (which quite possibly is not steampunk at all), and some Miyazaki-films that in my opinion have stampunk elements to them. Do let me know if there are movies here you feel are clearly not steampunk and I will remove them from the list.
Excellent List...mirrors where my viewing hours have been spent for the last decades