Charlotte Gainsbourg was borderline OK casting, no? In the possible world in which standards of beauty have changed; and also because nobody knew who Jane Birkin or Serge were then, so when confronted with Charlotte they wouldn't have had the same frisson we get from thinking about her parents and what an awesome mashup she is? And William Hurt was pretty convincing as sociopathic to the point where all the pretty people who weren't also sociopaths had rejected him. But I'm not arguing. To wet batteries!!!!