After a visit in October 1909 to the Konkokyo headquarters in Okayama during which he had discovered Matsunosuke ONOE's talent and recruited him as his new leading man, Makino devoted himself entirely to filmmaking; Ichitaro appeared in Makino's first post-1909 film, "Goban Tadanobu Genji no Ishizue," playing the role of MINAMOTO no Yoshitsune.
1909年（明治42年）10月、牧野が岡山の金光教本部を参詣したときに発見した尾上松之助を主演に据えた本格的な映画製作を開始するが、その第1作『碁盤忠信源氏礎』に市太郎は「源義経」役で出演する。