Louis B. Mayer was a Hollywood movie mogul during the golden age of cinema. He co-founded Metro-Goldwyn-Mayer (MGM) in 1924 and is best known for his role in shaping the star system and building the Hollywood studio system. Synonyms for Louis B. Mayer could include film producer, movie executive, Hollywood pioneer, entertainment mogul, or cinema visionary. He was a powerful figure in the film industry and his influence reached far beyond the confines of Hollywood. Despite being a controversial figure, his legacy is still evident in the films we watch today, and his contribution to the industry is widely recognized.