It is a misconception that most of the film was improvised by the actors. Jacques Rivette provided structure but did not let his actors "go wild", instead he let them write. A single scene was improvised, where Celine, played by Julie Berto, brags to her associates about her rich American friend. The rest of the scenes where shot from scripted material, mostly thanks to participating actors. The film is collaboration by several authors, including actors Berto, Labourier, Ogier and Pisier. Rivette's involvement in the writing was to give structure to all the contributions, tightening things up.