Metro-Goldwyn-Mayer cartoon studio

The Metro-Goldwyn-Mayer cartoon studio (also commonly referred to as MGM Cartoons) was an American animation studio operated by Metro-Goldwyn-Mayer during the Golden Age of American animation. Active from 1937 until 1957, the studio was responsible for producing animated shorts to accompany MGM feature films in Loew's Theaters, which included popular cartoon characters and series such as William Hanna and Joseph Barbera's Tom and Jerry series and Tex Avery's Droopy.

Source: Wikipedia — Metro-Goldwyn-Mayer cartoon studio (CC BY-SA 4.0)