Heroes of the East

Heroes of the East, also known as Challenge of the Ninja, Shaolin vs. Ninja, and Shaolin Challenges Ninja, is a martial arts film produced in 1978. It starred Gordon Liu and was directed by Lau Kar-Leung. Lau Kar-Leung has a cameo role as So Chan, a master of drunken boxing. The film is notable for portraying Japanese martial arts alongside the more typical kung fu used in most Hong Kong martial arts films.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.