What was the World War 2 movie about a zoo evacuation and an elephant going over the Alps?

Hannibal Brooks ? I think Oliver Reid was the lead character. Additional Info: The title is "Hannibal Brooks" (The SuperSolider in the Super Adventure). Starring: Oliver Reed, Michael J. Pollard, and Wolfgang Preiss. The movie was released in July of 1969, and the director was Micheal Winner.