Official Site: http://blood-c-movie.jp/index.html
Official Trailer: http://www.youtube.com/watch?v=3l3-aVf5CEE
Continues right after the TV series, set in Tokyo.
Director: Naoyoshi Shiotani
Original Character Design: CLAMP
Character Design/Chief Animation Director: Kazuchika Kise
Script: Nanase Ohkawa (CLAMP), Junichi Fujisaku
Animation Production: Production IG
The movie started production at the same time as the TV series with a different core staff at Production IG. It will open in Japan on July 2nd 2012.
Spoiler for Key Visual:
Here's a translation of the movie plot summary from the site:
Tokyo, Winter.
Despite the use of the Youth Ordinance Bill to enforce curfews for minors and regulate the use of the internet, young people continue to fight for their own freedom through underground methods. One such group calls themselves Surat. They have decided to take on Fumito Nanahara, a man who has great influence on the political world, and basically controls Tokyo with an iron fist. While using the internet as a weapon to discover more information about Fumito, they learn about "Tower", the secret organization behind Fumito which engages in human experimentation.
When members of Surat attempt to set up an ambush in the subway to expose the truth behind "Tower", mysterious creatures suddenly appear and attack the passengers. During this crisis, Saya appears - a young girl who uses a Japanese blade to slay the Old Ones. The same Saya who lost everything dear to her in that horrifying incident in Ukishima Province. What sort of "experiment" is Fumito and "Tower" trying to conduct using the Old Ones? And can Saya finally deliver vengeance to Fumito?
Now, the final battle begins...