abbreviation of Metro Goldwyn-Mayer, attested from 1933.
Examples from the Web for mgm
MGM and Columbia are both subsidiaries of Sony Pictures Entertainment.Propaganda, Protest, and Poisonous Vipers: The Cinema War in Korea|Rich Goldstein|December 30, 2014|DAILY BEAST
Shockingly, this last couplet made it into the 1953 film version; someone was napping over at MGM.
The trouble with Gable was that he was under contract to MGM.
So began his upward trajectory, signing as a contract player with MGM.
If there was a problem, Louis B. Mayer, the indomitable head of MGM, would fix it.
Through the attraction of the lead sphere on the mass of mercury when below the gain was greater by 0.589 mgm.
The two on one side were now interchanged and a gain in weight of about 31.7 mgm.