Major Film Studio
1. A major film studio is a production and distribution company that releases a substantial number of films annually and consistently commands a significant share of box-office revenues in a given market. In the North American, Western, and global markets, the major film studios, often simply known as the majors, are commonly regarded as the six diversified media conglomerates whose various movie production and distribution subsidiaries command approximately 90 percent of the U.S. and Canadian box office.
Source: Wikipedia