The San Sebastián International Film Festival (SSIFF), also known as Donostia Zinemaldia, is an annual FIAPF A-category film festival held in September in the Spanish city of Donostia-San Sebastián, in the Basque Country. Founded on September 21, 1953, it is one of Spain's most prestigious and internationally recognized film festivals. The festival has hosted significant events in cinema history, including international premieres and has contributed to the careers of notable filmmakers. It awards various prizes, including the Golden Shell for Best Film and the Donostia Award, which recognizes individuals for their career contributions to the world of film.