 That same year Gainsbourg appeared in the film "Charlotte for Ever" about a man who develops incestuous desires for his teenage daughter after his wife dies.Written and directed by Gainsbourg's father Serge Gainsbourg, who also took the role of Gainsbourg's father on screen, the film heightened the controversy that had resulted from Gainsbourg's debut single "Lemon Incest", which had similar themes and also was created and sung with her father Serge causing press speculation that the material was autobiographical.In 1988, she appeared together with her mother in a set of films, "Kung Fu Master" and the documentary drama "Jane B. by Agnes V.", both directed by Agnès Varda.