I've always wanted to see Cocteau's Orphee, as I am rather fond of the opera Philip Glass wrote to go with La belle et al bete.

It's much less a retelling of the myth than it takes the myth as a flashpoint about which it elaborates on love and art and liminality and its underworld is one of the best I have ever seen onscreen; I don't know that it is my favorite film of this material, but I've seen it three times now and I love it dearly. I've never heard the opera. Does it use Cocteau as the libretto, or what?