Hepcat in the Funky Hat is a 1961 action comedy film directed by Kinji Fukasaku and starring Sonny Chiba. It was followed by a sequel, Hepcat in the Funky Hat: The 20,000,000 Yen Arm, which was released one month later that same year and was also directed by Kinji Fukasaku with Sonny Chiba and Shiro Okamoto in the same roles.