I am not a big fan of the Samurai, so my suggestions tend toward the European sword styles. Try "The Duellists" With Harvey Keitel and Keith Carradine, set during the Napoleonic Wars and directed by Ridley Scott of "Gladiator" fame. It is about an obsessed duellist, Keitel, and the object of his obsession, Carradine. Keitel plays obsessed so very well. Another would be "Princess Bride", with Cary Elwes. Do not take the sword scenes any more seriously than the rest, but the whole is a stitch, as is another Elwes film, "Robin Hood, Men in Tights", a very funny Mel Brooks send-up of Costner's lousy "Prince of Thieves". Try also the old classic, "Spartacus", with Kirk Douglas and Tony Curtis, among mamny, many others, its no more accurate than "Gladiator", but it is even more spectacular when you consider that they didn't use computers to fill in the extras. All of those troops in Crassus's legions were real people. BTW, the Roman legions did NOT hack and chop with their gladii (shortswords), they stabbed. P.S. Look for one of my favorite actors, Peter Ustinov, as the gladiator school owner. Another great Roman film is "Fall of the Roman Empire" with my all-time favorite, Sophia Loren. It covers the same territory as "Gladiator", more or less, and with the same lack of historicity. But it is a great spectacle until the end when Commodus duels Lucius Verus with pila (javelins)! Dumb! Try also the Kirk Douglas/Tony Curtis film "The Vikings"; not accurate, but wonderful fun. Finally, a weird but in many ways accurate in flavor film with Charlton Heston, "The Warlord", about a Norman minor noble taking command of a tower keep on the North Sea coast. Strange, but very compelling.
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Walk in the Light,
Hugh Fuller