Signal the Movie is a 2021 Japanese police procedural thriller drama film directed by Hajime Hashimoto and co-written by Kōsuke Nishi and Hiroshi Hayashi; the film is based on a television series with a same name by Akira Uchitaka and Kosuke Suzuki, which in turn is a remake of a South Korean television series with a same name by Kim Eun-hee. Distributed by Toho, it continues where the television series had left off, as Kento Saegura, Misaki Sakurai and Takeshi Ooyama investigate mysterious car accidents occurring in both past and present era. Kentaro Sakaguchi, Michiko Kichise, Kazuki Kitamura, Yuichi Nakamura, Tetsuhiro Ikeda and Kaede Aono reprises their roles from the television series, with Tetta Sugimoto, Nao, Tetsushi Tanaka, Takeshi Kaga and Tsuyoshi Ihara joining the ensemble cast. It was released in Japan on April 2, 2021.