Incoming Resources
- Callas forever, a European co-production film Medusa Film-Cattleya Rome, Film and General Productions London, Galfin-Paris, Alquimia Cinema-Madrid, MediaPro Pictures-Bucharest in association with Eurimages, Tele+, Canal+, France 2 Cinema, a Franco Zeffirelli film ; produced by Riccardo Tozzi, Giovannella Zannoni ; screenplay by Martin Sherman, Franco Zeffirelli ; original story by Franco Zeffirelli ; directed by Franco Zeffirelli
- Callas por siempre, una producción, Medusa Produzione, CattleyaBusiness, Affair Production Limited, Film and General Productions Limited ; Alquimia Cinema S.A., Galfin Mediapro Pictures, France 2 Cinéma presentan ; producida por Riccardo Tozzi y Giovannella Zannoni ; dirigida por Franco Zeffirelli