The Shogun and the Fishmonger aka 家光と彦左と一心太助 is a film from Japan, released in 1961, starring Kinnosuke Nakamura, Katsuo Nakamura, Noriko Kitazawa, Hiroko Yoshikawa, Hiroko Sakuramachi, Michiyo Kogure, Haruo Tanaka, Kyoji Sugi, Bandō Mitsugorō VIII, Kenji Susukida and directed by Tadashi Sawashima.
Plot: Fishmonger Tasuke and Shogun Iemitsu swap their identities in pretence for the protection of Iemitsu.