A Royal Affair, a movie about the relationship triangle between the King and Queen of Denmark and the King's physician.
The arranged marriage between Caroline and King Christian quickly disintegrates as it turns out that he is totally bonkers. He forms a close friendship with the man he appoints as his royal physician, who in turn begins a hot and heavy affair with Caroline. The movie is slowly paced, but this is okay. The romantic aspect of the movie is located within a complex of political intrigues and relationship dynamics, and eventually Caroline and lover seem motivated more by a desire to put forth Enlightenment reforms than to simply have sex with each other, which is quite interesting. I was particularly intrigued by the relationship between King Christian and his physician. At first you hate Christian for being so crazy and spoiled and oblivious. But it gradually becomes clear how vulnerable and isolated he is. There is much tenderness between him and the physician and Christian's final act as King is deeply horrifying.