I love The Passion of Joan of Arc, Carl Theodore Dreyer's 1928 classic. After I caught only half of it on TCM one night while they were doing a month of Dreyer movies, my husband bought me a copy of the one that they had shown that featured Richard Einhorn's Voices of Light opera that he wrote for the film. (He also got me Dreyer's Vampyr, LOL).
It was just so dark and beautiful. It really struck a chord. Unfortunately I haven't been able to see any other movies on Joan of Arc and have been wanting too, especially some of the more recent versions that have come out.