Cousin Cousine
Cousin Cousine is a 1975 French romantic comedy film directed by Jean-Charles Tacchella and starring Marie-Christine Barrault, Victor Lanoux, Marie-France Pisier, Guy Marchand and Ginette Garcin. Written by Tacchella and Danièle Thompson, the film is about two cousins by marriage who meet at a wedding and develop a close friendship. After their spouses prove unfaithful, the cousins' friendship leads to a passionate love affair.
Plot
Two cousins related by marriage, Marthe and Ludovic, meet at a family wedding for the first time. Marthe is the bride's daughter, and Ludovic is the groom's nephew. After a raucous wedding reception with plenty of dancing and drinking, Marthe and Ludovic are left waiting for their respective spouses, Pascal and Karine, who are off having sex. While they wait, they get to know each other: Marthe is a secretary, and Ludovic is a dance instructor who changes his occupation every three years. They later dance together. Eventually, Pascal and Karine show up, slightly disheveled, and the couples part.