Onmyoji (2001)

Both are Japanese jidaigeki movies that star Comedic Nomura Mansai in main role...........................................

Both are set in Heian-kyo Imperial Court, have traditional costumes, both feature Abe no Seimei as leading character. Both are about jealous Onryo, vengeneful ghosts of a Imperial Concubine trying to unleash vengeance upon the Imperial bloodline & Court,.

Both take place in East Asian Imperial Courts, both have onmyoudo, excorsim of demons, their curses.
Both are based on famous novels by Baku Yumemakura.

Both have intense swordplay. Both are based on famous Japanese historical novels by Baku Yumemakura.

Both are about dead spirits being resurrected as demons to extract vengeance
Both have intense swordplay

Both are about onmyoudo, excorsim.............................................................................................................