Warner Bros. Entertainment Inc. is an American film and entertainment studio headquartered at the Warner Bros. Studios complex in Burbank, California, and a subsidiary of Warner Bros. Discovery (WBD). Founded in 1923 by four brothers, Harry, Albert, Sam, and Jack Warner, the company established itself as a leader in the American film industry before diversifying into animation, television, and video games, and is one of the "Big Five" major American film studios, as well as a member of the Motion Picture Association (MPA).

A film studio is a major entertainment company that makes films. They may have their own privately owned studio facility or facilities; however, most firms in the entertainment industry have never owned their own studios, but have rented space from other companies. The day-to-day filming operations are generally handled by their production company subsidiary.