Conan the Barbarian

Conan the Destroyer

Excalibur (My childhood favourite)

Gladiator (My adulthood favourite)

The Valley ( Not sure if that's the actual title, saw it a looong time ago, I think Rutger Hauer or whatever his name is stars in it )

13th Warrior

Highlander

Braveheart

Period documentaries can be fun with a few beers...

Last Samurai

Some of those Japanese B&W films about samurai ( '7 Ronin' I think and a few others)

Some Chinese ancient period films

And a couple of episodes of Black Adder to make sense of it all. ('Your money "and" your life' hilarious stuff!)

As for books 'Dune' is good.