Bob Dylan threatened to sue the producers for defamation, claiming that the film portrayed him as responsible for Edie Sedgwick's death. Thus, any mention of Dylan was omitted from the script and Hayden Christensen is called Billy Quinn in dialogue and billed in the credits only as "Musician."
Sienna Miller was cast twice as Edie Sedgwick. She was dropped by the producers because they felt they needed a "bigger name." Miller was eventually re-cast in the role, due in part to massive publicity from her public break-up from fiancée Jude Law.
Andy Warhol's mother speaks Czech. His family came to Pittsburgh from Slovakia, which borders the Czech Republic. Throughout Warhol's life (1928-1987) the Czech and Slovak nations were joined as Czechoslovakia, which existed from 1918-1992.
Despite the fact that the film takes place in New York City, most of the shooting took place in Louisiana due to budgetary restrictions, where most of the crew's homes had been destroyed by Hurricane Katrina. Only a few additional scenes shot after principal production were shot in New York.
The scene with Mary Elizabeth Winstead was shot after principal photography had taken place. Her character, Ingrid Superstar, was hired and promoted by Warhol as an intentional parody of Edie, after their falling-out.
Katie Holmes was originally set to play Edie Sedgwick, but dropped out due to her conflicting religious beliefs with the character's drug-addiction. Holmes also became pregnant right before filming was scheduled to begin.
At no point during the film or in the credits is the musician played by Hayden Christensen ever referred to as Bob Dylan, although he is the embryonic music icon with whom Edie is reputed to have been in love and had an affair.
The newspaper clipping handed to Edie reads "Dr. Kenneth B. Clement, ranaround naked chanting 'Banana Man.' narrowest margin in amayoral election. The final count withal precincts reporting, was Locher to Stokes.", over and over as filler space.