Hannibal Brooks

Hannibal Brooks is a 1969 British war comedy film directed by Michael Winner and written by Ian La Frenais and Dick Clement based on a story by Winner and Tom Wright. The film follows a prisoner of war attempts to escape from Nazi Germany to Switzerland during World War II, accompanied by an Asian elephant. It stars Oliver Reed, Michael J. Pollard and Wolfgang Preiss. The beginning is based on the experiences of the writer Tom Wright who, while a prisoner of war, worked at Munich Zoo to care for their elephant Lucy. It has also been attributed to the true story of Olga the elephant rescued from Vienna Zoo in 1944. The title is a reference to the Carthaginian military commander Hannibal who led an army of war elephants over the Alps.

Source: Wikipedia