TMDb/Dune: Part Three TV Witness Paul Atreides' brutal reign. The final chapter of Denis Villeneuve's Dune trilogy begins. See the epic trailer for Dune: Part 3. March 18, 2026 AceShowbiz - The epic saga continues with the highly anticipated release of the first trailer for Dune: Part 3, the final installment in Denis Villeneuve's acclaimed sci-fi trilogy. Timothée Chalamet returns as Paul Atreides, who has now ascended to Emperor of the Known Universe.