"La Vie Est Un Long Fleuve Tranquille" is a 1997 French comedy-drama film directed by Étienne Chatiliez. The story revolves around two identical twin sisters, Manu and Léa, who were separated at birth. Unbeknownst to each other, they lead parallel lives, with Manu living with her wealthy and influential family, while Léa grows up in a modest, working-class family.