Regentage (movie, 2002)

After nearly two decades of wedded bliss, Rosemarie and Hubert Haller's marriage is a shambles. While Rosemarie begins an affair with Bernd, a self-proclaimed guru, adventuresome charmer Hubert finds refuge in the arms of Monica. At the last moment, Hubert and Rosemarie realize that they still have a chance for a future together.