All I can say about this film series is that it is both stunning and hauntingly beautiful, especially if you are a fan of China Mieville's books, the short game Loondon, or Gothic/Victorian steampunk in general.
Nominated for and winner of numerous awards, the first video in this series follows Jasper Morello, a royal navigator who has just been called back to pilot a ship after three months of being grounded. I won't spoil much more of the plot (wikipedia does a great job of that, anyway, if you really don't feel like watching this gorgeous piece of animation) so you can watch the video for free here:
http://www.youtube.com/watch?v=vORsKyopHyM
Edit: The main site is here http://www.jaspermorello.com/gazette/