Her pseudonym was derived from the 1928 novel `` Belle de jour '' by Joseph Kessel and the 1967 film of the same name starring Catherine Deneuve , directed by Luis Buñuel .
The name recalls the 1928 novel `` Belle de Jour '' by Joseph Kessel and the 1967 movie , `` Belle de Jour '' , starring Catherine Deneuve , directed by Luis Buñuel .