Metro-Goldwyn-Mayer, a film company formed in 1924 from a merger including studios originally run by Samuel Goldwyn and Louis B. Mayer.
米高梅电影制片公司（由塞缪尔·高德温和路易斯B·梅耶于1924年创立）
Definition of MGM in US English:
MGM
proper noun
Metro-Goldwyn-Mayer, a movie company formed in 1924 from a merger including studios originally run by Samuel Goldwyn and Louis B. Mayer. The company released both The Wizard of Oz and Gone With the Wind in 1939, and also produced many famous musicals, including Meet Me in St. Louis (1944) and An American in Paris (1951).