21 Hours at Munich is a 1976 American historical drama television film directed by William A. Graham and starring William Holden, Shirley Knight and Franco Nero. It is based on the 1975 non-fiction book The Blood of Israel by Serge Groussard, and it deals with real events concerning the Munich massacre during the 1972 Summer Olympics. It was broadcast by ABC November 7, 1976. Despite its television origin, the film was released theatrically in several foreign countries. It was nominated for Outstanding Television Movie and Outstanding Picture Editing for a Television Movie at the 29th Primetime Emmys.