Trying to remember the name of an old samurai movie. I saw a clip of the final battle on youtube, there are two armies in a big open field and the two generals ride out on horseback to have a one on one duel. If I remember correctly, one of them was a rebel usurper or something. They clash a few times on horseback until they both get knocked off and start fighting on foot while really dramatic music plays in the background, then the music ends suddenly when one of them lands a fatal blow and wins the fight.I keep thinking about this clip and I'm trying to find what movie it was from. It was in color but still seemed pretty old in how it was filmed, so maybe it was an 80s or 70s film.