There are some films widely praised that certain viewers just don't get and this was one of those for me. I liked the cinematography, the lighting, the music, the acting and the first and last ten minutes. Both scenes were shocking and imaginative, if a trifle Shakespearian.
But in between was a complex plot that had to be explained to the audience in its entirety near the end. The explanation of what actually transpired took at least 10 minutes of film time. It seemed like a ham-handed technique. I think in the best films the audience comes to understand what happened on their own.
I also thought the film worked best from the POV of the original protagonist but somewhere the POV shifed to Belmondo's, and it lost its tightness for me. What happened often seemed arbitrary and even after the explication, I said, "huh?"
Is there a film that others revere that leaves you cold? This is my pick. Good looks only go so far.