Lounge Chair (1988)

This uneven comedy of manners concerns a young film projectionist (Jerome Ange) who sets out to find a marriageable woman. He sets his sights on two women he has lived with for nearly ten years (Kristin Scott-Thomas and Sylvie Orcier). For some reason, the projectionist encourages one of the women to hire a private detective (Patrice Kerbrat) to monitor his romantic activities.