The entertainment industry has its roots in Hollywood's Golden Age, which spanned from the 1920s to the 1960s. During this period, major film studios like MGM, Paramount, and Warner Bros. dominated the industry, producing iconic movies and stars like Greta Garbo, Clark Gable, and Marilyn Monroe. The studio system, which controlled every aspect of film production, distribution, and exhibition, played a crucial role in shaping the industry.