Out of pure interest, I decided to do some research into what The Internet™ regarded as Steampunk Cinema. Here is a list of films that numerous sites agreed on as portraying Steampunk elements and ideals. I've ignored remakes of the same film.
Steampunk: "The term denotes works set in an era or world where steam power is still widely used. Steampunk works are usually set in the 19th century and often in Victorian era England, but incorporate prominent elements of either science fiction or fantasy, such as fictional technological inventions, or real technological developments (like the computer) occurring at an earlier date."
"Steampunk is often associated with cyberpunk and shares a similar fanbase and theme of rebellion. Apart from time period and level of technological development, the main difference between cyberpunk and steampunk is that steampunk settings usually tend to be less obviously dystopian than cyberpunk, or lack dystopian elements entirely."