had Toshiro Mifune take the role of Obi Wan Kenobi
it would alter Star Wars deeply
The lightsaber duel would be completely different.
David Prowse and Alex Guinness oriented on classical sword fight between medieval Knights.
Toshiro Mifune was trained Japanese sword fighter, this give a complete different dynamic to Duel as in original
to Compair original
vs Toshiro Mifune in Yojimbo (A Fistful of Dollars)
Also would Toshiro Mifune presents, alter the face of Jedi Order and Sith
it would give them
Japanese touch, special Darth Vader would now obvious be a Samurai with Gasmask on Life-support
(just like character Graal in Italian Star Wars Nock-off
The Humanoid from 1979)
Also making the Jedi order and it evil counter part more like two Chinese Shaolin orders fighting each other.
other Asia cultural influence the Yin and Yang = Jedi and Sith would be present in this version of Star Wars