The Birthday Party is a 2025 drama film co-written and directed by Miguel Ángel Jiménez, based on the 2007 novel of the same name by Panos Karnezis. It stars Willem Dafoe, Vic Carmen Sonne, Joe Cole, and Emma Suárez. The film had its world premiere in the Piazza Grande section of the 78th Locarno Film Festival on 7 August 2025.