The United Kingdom has had a major influence on modern cinema with the first moving pictures being developed in London in 1889. The British film industry experienced a 'golden age' in the 1940s and has produced many important and successful films, though it has also been characterized by debates around its identity and foreign influences. While British films often involve American producers and actors, British talent also features prominently in Hollywood productions. Key British genres include rock music, which originated in the late 1950s with influences from American rock and roll, and punk rock led by bands like the Sex Pistols in the 1970s. Many top-grossing films also have significant British elements.