Stopped half way.
This movie has the unique accomplishment of being simultaneously boring and frustrating. Quite amazing because usually frustration leads to a kind of keen interest. That didn't happen here.
Apparently, he wrote an autobiography. If you want to know about Jean-Do's life, I suggest getting that. At least you won't have to hear different characters cycling through the entire alphabet just to decode three words. The book would be much faster at getting this guy's thoughts.
I can't believe this is in the IMDB top 250. They could have EASILY skipped the alphabet cycling by just showing the codebreaker's face with him monologuing over the visual. Totally frustrating. Total waste of time. Terrible directing.