Since "Long Cours" literally translates from French as "Long Course" or "Long Distance," and is often used metaphorically to describe a long journey or endurance, the most likely candidate for your search is the 1996 French film often associated with maritime themes or adventure.
Rare finds: Content includes obscure foreign films and region-locked documentaries. Long Cours 1996 Ok.ru
Lead Cast: Benoît Magimel, Hélène de Fougerolles, Manuel de Blas Genre: Crime / Drama / Thriller Release Date: October 25, 1996 (France) Plot Summary Since "Long Cours" literally translates from French as
Plot: The story centers on Charlotte, who shoots her former employer and lover while attempting to extort money to fund a group of anarchists. Genre: Crime / Drama Runtime: Approximately 1 hour and 35 minutes. Presence on Ok.ru Genre: Crime / Drama Runtime: Approximately 1 hour
As of the mid-2020s: