The retelling of June 6, 1944, from the perspectives of the Germans, US, British, Canadians, and the Free French. Marshall Erwin Rommel, touring the defenses being established as part of the Reich's Atlantic Wall, notes to his officers that when the Allied invasion comes they must be stopped on the beach. "For the Allies as well as the Germans, it will be the longest day"
Elenco: Eddie Albert , Paul Anka , Arletty , Jean-Louis Barrault , Richard Beymer , Hans Christian Blech , Bourvil , Richard Burton , Wolfgang Büttner , Red Buttons , Pauline Carton , Sean Connery , Ray Danton , Irina Demick , Fred Dur , Fabian , Mel Ferrer , Henry Fonda , Steve Forrest , Gert Fröbe , Leo Genn , John Gregson , Paul Hartmann , Peter Helm , Werner Hinz , Donald Houston , Jeffrey Hunter , Karl John , Curd Jürgens , Alexander Knox , Peter Lawford , Fernand Ledoux , Christian Marquand , Dewey Martin , Roddy McDowall , Michael Medwin , Sal Mineo , Robert Mitchum , Kenneth More , Richard Münch , Edmond O'Brien , Leslie Phillips , Wolfgang Preiss , Ron Randell , Madeleine Renaud , Georges Rivière , Norman Rossington , Robert Ryan , Tommy Sands , George Segal , Jean Servais , Rod Steiger , Richard Todd , Tom Tryon , Peter van Eyck , Robert Wagner , Richard Wattis , Stuart Whitman , Georges Wilson , John Wayne , Patrick Barr , Lyndon Brook , John Crawford , Armin Dahlen , Mark Damon , Richard Dawson , Eugene Deckers , Gil Delamare , Frank Finlay , Harry Fowler , Bernard Fox , Robert Freitag , Bernard Fresson , Lutz Gabor , Arnold Gelderman , Harold Goodwin , Walter Gotell , Henry Grace , Clément Harari , Ruth Hausmeister , Jack Hedley , Michael Hinz , Walter Horsbrugh , Til Kiwe , Harry Landis , Wolfgang Lukschy , Victor Maddern , Howard Marion-Crawford , Neil McCallum , John Meillon , Kurt Meisel , Gérard Moisan , Tony Mordente , Bill Nagy , Rainer Penkert , Malte Petzel , John Phillips , Siân Phillips , Maurice Poli , Hartmut Reck , Trevor Reid , Heinz Reincke , Paul Edwin Roth , Dietmar Schönherr , Ernst Schröder , Hans Söhnker , Heinz Spitzner , Nicholas Stuart , Alice Tissot , Roland Urban , Vicco von Bülow , Joe Warfield , Dominique Zardi .