Thought Provoking...
...yet I haven't come to any concrete conclusions. What is the significance of the train? Trains usually run on one track and have destinations in place and time...does it make sense that the train was a symbol of two lives-Rochefort & Hallyday- meeting, standing and then departing while influencing each others paths?
Would their lives have ended the same not having met each other? I think they needed to have met in order to realize who they really are as well as the regrets they hold.