The film industry comprises companies involved in film production, distribution, and exhibition. Major filmmaking centers include the United States, India, Europe, and Hong Kong. However, many films are produced in countries with lower costs than the company funding the film. The UK film industry contributed £4.3 billion to the economy in 2006, with 516 films released that year. There are around 400 permanent film companies in the UK, with 43% involved in production, 13% in distribution, and 44% in exhibition. Major film companies include Walt Disney Company, Universal Studios, and Warner Bros. Entertainment, which have advantages from their ownership of other media interests that allows them to maximize profits through branding and synergies across platforms.