Warner Bros. Pictures was founded in 1918 and has been a leading force in film. They originated in North America and opened their first movie theater and studio in Los Angeles. In 2013, Warner Bros had $12 billion in annual revenue. Some of their highest grossing films include The Dark Knight, The Dark Knight Rises, and the Harry Potter series. Clint Eastwood has directed or starred in over 40 films released by Warner Bros over the past 45 years.