The major film studios in the US, known as the Big 6, control the global film industry through their operations in Hollywood. They own studios like Warner Bros., Paramount, 20th Century Fox, Disney, Columbia, and Universal. Companies increase their market share through horizontal integration, acquiring similar companies, and vertical integration, controlling various steps of production and distribution. Disney, for example, integrated horizontally by acquiring Pixar and vertically by producing, distributing, and exhibiting their own films. The British film and TV industries differ in their ownership structures from the Hollywood system.