The function of the flashback is Freudian...You have to let them wander like the imagination or like a dream.
Sergio LeoneThere was also the myth of the western films. But my films are borrowed not from the story of the West in America but from the story of cinema.
Sergio LeoneYou see in Once Upon a Time in the West the whole film moves around her [Claudia Cardinale]. If you take her out, there's no more film. She's the central motor of the entire happening.
Sergio Leone