Arabic liteature will often cites the poetry of the 13th century Persian Sufi master Jalaluddin Rumi (Najm, 1966).
If you are referring to or quoting Akira Kurasaw from a non-Western source, e.g. 黒澤 明 and citing in an English paper, the in-text citation would be, (Kurasawa, 1954)
Reference list:
Najm, Y. (1966). Al-qissah fi al-adab Al-Arabi al-hadith [The novel in modern Arabic literature]. Beirut: Dar Al-Thaqafah.
七人の侍 transliterated is Shichinin no Samurai, and so the reference would be:
Motoki, S. (Producer), & Kurosawa, A. (Director). (1954). Shichinin no samurai [Seven samurai; motion picture]. Japan: Toho.