The Last Remake of Beau Geste

A jewel of great value is hidden somewhere in the Geste family, and the brothers who join the French Foreign Legion all know it. Beau (Michael York) carries himself like an aristocrat, while his clumsy twin Digby (Marty Feldman) trips along behind, both under the thumb of Sergeant Markov (Peter Ustinov). Feldman sends them to Fort Zinderneuf, where the Sergeant wants to break them and an attack by Arabs puts every one of their lives on the line.