Also known as Chili's BluesFrench (1994)
(There are no English subtitles available for this movie, as far as I know. There is French close-captioning, though, which enabled me to follow it fairly well.)
So we have a bunch of people stranded in a train station during a blizzard. A young vacuum-cleaner salesman (Roy Dupuis) and a suicidal teenager (Lucie Laurier) spend pretty much the entire movie talking about the meaning, or lack of meaning, of life. In other words, Existentialism 101.