Blood-C: The Last Dark is a 2012 Japanese animated action horror film directed by Naoyoshi Shiotani and co-written by Nanase Ohkawa and Junichi Fujisaku based on the 2011 anime television series Blood-C co-created by studio Production I.G and manga artist group CLAMP. Produced by Production I.G and distributed by Shochiku, The Last Dark is set six months after the events of Blood-C; in the universe of Blood-C humanity is secretly preyed upon by a race called the Elder Bairns, whose feeding is kept under control by an ancient agreement called Shrovetide. The Last Dark follows Saya Kisaragi as she pursues Fumito Nanahara—the human guardian of Shrovetide who manipulated and betrayed her—through Tokyo with the help of an underground organization called SIRRUT. The film stars Nana Mizuki as the voice of Saya and Kenji Nojima as Fumito, alongside Ai Hashimoto, Hiroshi Kamiya, Yuki Kaji, Yuichi Nakamura, Kana Hanazawa, Yūko Kaida, Masumi Asano, Junichi Suwabe and Jun Fukuyama. The Last Dark was released in Japan on June 2, 2012.

Naoyoshi Shiotani is a Japanese director who was worked into multiple works from the studio Production I.G. He is famous for directing all Psycho-Pass works. He was voted the third director in Newtype's anime awards.