Steampunk

"Steampunk is a sub-genre of fantasy and speculative fiction that came into prominence in the 1980s and early 1990s. The term denotes works set in an era or world where steam power is still widely used—usually the 19th century, and often Victorian era England—but with prominent elements of either science fiction or fantasy, such as fictional technological inventions like those found in the works of H. G. Wells and Jules Verne, or real technological developments like the computer occurring at an earlier date."

Some movies considered part of the genre:
Time After Time,
Wild Wild West,
Lemony Snicket,
Treasure Planet,
Tin Man,
Golden Compass,
The Prestige,
Sleepy Hollow,
Stardust,
Sky Captain and the World of Tomorrow,
Sherlock Holmes (not all adaptations),
Les Aventures Extraordinaires d’Adele Blanc-Sec ,
The Secret Adventures of Jules Verne,
The League of Extraordinary Gentlemen,
and the short film "9"

-> Great list of steampunk films
-> STEAMPUNKOPEDIA2 guide to a cool 19th century

I like these definitions of steampunk:

Everything Jules Verne could have written.
Everything H.G. Wells should have written.
Everything A. Conan Doyle thought of but never published because it was too fantastic.
~ Frank Chadwick, 1988

How the past would have been different if the future had happened sooner.

~ Douglas Fetherling

MTV mentions movies that are examples of steampunk

MTV Shows