Casabianca is a 1951 French war drama film directed by Georges Péclet and starring Pierre Dudan, Gérard Landry and Alain Terrane.

[1] It portrays the story of the French submarine Casabianca in World War Two.

[3] The French Navy submarine Le Glorieux, a sister ship of Casabianca, was used in the making of the film.

[4] Exteriors were shot in Algiers in French Algeria and the naval port of Toulon.

Rather than be scuttled along with the rest of the French fleet in Toulon when German forces invaded the remainder of Unoccupied France in 1942, it escaped and crossed to Algiers which was now under the control of the Allies.