I thought this was directed by Francois Truffaut
I saw this on the plane back from Taiwan. The info on the plane clearly states directed by Francois Truffaut (see: https://klmife.weareifp.com/gui/media/september-2015/?c=118&m=105028). I was thinking why I hadn't heard of it before. It also said starring J Moreau and O Werner. I realize now they messed it up with Jules et Jim. Balls.
I knew Truffaut died ages ago, so I thought this was made in the 1980s. I literally thought that until 10 minutes ago. I also thought Chaplin's Wife (in the film) was played by Moreau. I feel like a fool!
Film wasn't that great. It was long, boring and just made me sad.