The film, made by the Guardian and Accidental Pictures, got a standing ovation from the audience at the annual film festival.
The film is directed and produced by Patrick Farrelly and Kate O’Callaghan and was a co-production by Accidental Pictures and the Guardian.
The film crew follow her as she confronts her past, her family, her culture, her religion, country and its leaders.
Co-director Patrick Farrelly said: “It is astonishing that FGM is not the top priority for the feminist movement, the women’s movement and the whole human rights movement.