The San Francisco Film Society Cinema will screen samurai classics at 1746 Post St. in S.F.’s Japantown. “Harakiri,” (133 min.) written by Shinobu Hashimoto and Yasuhiko Takiguchi, features an unemployed samurai who arrives at Lord Iyi’s manor and begs for permission to commit ritual suicide on his property. Stars Tatsuya Nakadai, Akira Ishihama, Shima Iwashita. Screens Wednesday, Jan. 18 at 1:30 p.m., 6:30 p.m. Toshiro Mifune stars in Akira Kurosawa’s “Yojimbo” (110 min.). Masterless samurai Sanjuro turns a war between two evil clans to his own benefit. Written by Kurosawa and Ryuzo Kikushima, also stars Tatsuya Nakadai and Takashi Shimura. Screens Wednesday, Jan. 18 at 4:15 and 9:15 p.m. Mifune swaggers and snarls to comic effect in Kurosawa’s tightly “Sanjuro.” In a companion piece to “Yojimbo,” (96 min.) “Sanjuro” depicts a jaded samurai (Mifune) by the same name, who helps a group of young warriors eliminate their clan’s evil influences. Written by Kurosawa, Kikushima and Hideo Oguni. Also stars Nakadai and Takashi Shimura. Screens Thursday, Jan. 19 at 2:45 and 8:45 p.m. The classic “Seven Samurai” (210 min.) tells the story of a 16th century village whose desperate inhabitants hire the warriors to protect them from invading bandits. Kurosawa’s three-hour long film stars legendary actors Mifune and Shimura, and is ultimately, a tale of courage and hope. Written by Kurosawa, Shinobu Hashimoto and Oguni. Also stars Nakadai and Daisuke Kato. Screens Thursday, Jan. 19 at 5 p.m. Tickets: Double feature $9 for SFFS members, $11 general, $10 senior/student/disabled; sffs.org. Info: (415) 561-5000 info@sffs.org.