The Last Valley is a 1971 historical drama starring Michael Caine and Omar Sharif as a mercenary soldier and a teacher respectively who find themselves during wartime in a peaceful valley untouched by the 30 Years War. The Younger Son has the DVD (or BluRay, I forget which) and watched it with me. It was a box office failure, but don't let that stop you. It gets mostly positive reviews now. I liked it.