Warner Brothers Pictures was founded in 1918 by four brothers who began showing movies in mining towns. They later purchased property in Hollywood to establish their studio. Warner Brothers owns many subsidiary companies including Warner Bros. Studios, Warner Bros. Pictures, DC Comics, and New Line Cinema. Some of their most successful films include The Dark Knight trilogy and the Harry Potter franchise, benefiting from established brands and targeting wide audiences. Their extensive library of over 6,650 films and 40,000 TV titles has also contributed to their ongoing success.