Who's film "Le Monde du silence" won the Palme d'Or in 1956 and the Academy Award for Best Documentary in 1957, Louis Malle or  Arne Sucksdorff?
Louis Malle: Louis Marie Malle (] ; 30 October 1932 – 23 November 1995) was a French film director, screenwriter, and producer. Louis Malle:  His film "Le Monde du silence" won the Palme d'Or in 1956 and the Academy Award for Best Documentary in 1957, although he was not credited at the ceremony with the award instead being presented to the film's co-director Jacques Cousteau.
i don't know