Blood Type: Blue (1978)
Original title: ブルークリスマス
Blood Type: Blue is a 1978 Japanese-language science fiction movie directed by Kihachi Okamoto, with a running time of 2h 13m. It stars Hiroshi Katsuno, Keiko Takeshita and Tatsuya Nakadai.
UFOs appear on Earth, and people who actually see them suddenly find that their blood has turned blue. Soon panic and hysteria result in the new "blue-bloods" being persecuted by the rest of mankind, and eventually certain all-too-familiar measures begin to be taken against them.