James Clavell's Shogun (1989), an adaptation of the novel of the same title by Dave Lebling and James Clavell.
As described on the box:
The year is 1600. You are John Blackthorne, Pilot-Major of a privateering merchant ship and the first Englishman to set foot on Japanese soil. Thrust into the exotic culture of feudal Japan, you must rely on your wits and sheer physical strength to survive. As you are drawn into the political intrigue and teeming violence, your most basic beliefs and assumptions will be tested. Act with care: in the land were honor is valued above life itself, you make a wrong decision at your peril.