Leonardo Di Caprio has emphasised the importance of The Great Gatsby novel in the United States.
Speaking at the Cannes Film Festival he said: "Gatsby is compulsory reading in secondary school.
"People today still try to dissect this novel, to interpret every line, it's a kind of endless quest. We wanted to re-shape the novel's characters. It is so exciting to work with a text of this calibre."
Steven Spielberg has backed La Vie d'Adele to be a breakthrough racy hit after he and the Cannes jury named it the festival's top film.
Baz Luhrmann's glittering adaptation of The Great Gatsby will open the Cannes Film Festival tonight.