Harry Warner, Polish-American businessman, co-founded Warner Bros (d. 1958)

Harry Morris Warner (born Hirsz Mojżesz Wonsal; December 12, 1881 – July 25, 1958) was an American studio executive, one of the founders of Warner Bros., and a major contributor to the development of the film industry. Along with his three younger brothers (Albert, Sam and Jack) Warner played a crucial role in the film business and played a key role in establishing Warner Bros. Pictures, Inc, serving as the company president until 1956.