Mumon: The Land of Stealth is a Japanese jidaigeki film, directed by Yoshihiro Nakamura and based on the novel Shinobi no Kuni by Ryō Wada. For international distribution, the film has been titled Mumon - The Land of Stealth. Set during the Sengoku period, the film focuses on fictional events that take place surrounding the Tenshō Iga War. Mumon: The Land of Stealth was theatrically released in Japan by Toho on July 1, 2017. The theme song for the film is "Tsunagu " by the Japanese group Arashi.