MGM Co-Founder Marcus Loew was a German-born American business magnate and entrepreneur. He is best known for founding the Metro-Goldwyn-Mayer (MGM) film studio in 1924, which became one of the most successful and influential motion picture companies in the world. Loew was also involved in the theater business, owning a chain of movie theaters and vaudeville venues. He was an important figure in the early days of Hollywood and helped shape the industry as it is today.