The Fall of Ako Castle (赤穂城断絶, Akō-jō danzetsu) (aka Swords of Vengeance) is a 1978 Japanese historical martial arts period film, directed by Kinji Fukasaku. It depicts the story of the Forty-seven Ronin (Chūshingura). The film is one of a series of period films by Fukasaku starring Sonny Chiba, including Shogun's Samurai.The film received one nomination for 'Award of the Japanese Academy' for best cinematography.[1]