Tandem
Starring Jean Rochefort, Gérard Jugnot, Sylvie Granotier, Jean-Claude Dreyfus, Marie Pillet, Albert Delpy, Philippe Dormoy, Anne-Marie Pisani, Julie Jézéquel, Patrice Leconte
It's a comedy movie, and has a rating of 7 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Belgium.