22-year-old Chalamet is best-known for appearing in Homeland, Men, Women and Children, Interstellar and Call Me By Your Name, the last of which earned Chalamet a Best Actor nomination at the Oscars.
Paul Atreides is the main protagonist of Dune (and appears in a minor role in its two immediate sequels, Dune Messiah and Children of Dune), the 15-year-old son of Duke Leto Atreides of Caladan. The Atreides family moves to the desert planet Arrakis, known as Dune, the source of the spice melange, which transforms consciousness and allows for interstellar travel. There the feud between House Atreides and House Harkonnen spills into open warfare. Paul has to win an alliance with the mysterious natives of Arrakis, the Fremen, to secure victory against the Harkonnens.
Previously filmed by David Lynch in 1984 and as a SyFy mini-series in 2000, Dune is the biggest-selling single science fiction novel of all time, with over 20 million copies sold since it was published in 1965.