Steven Allan Spielberg (born December 18, 1946) is an American film director, screenwriter, producer, and business magnate. Spielberg is consistently considered as one of the leading pioneers of the New Hollywood era, as well as being viewed as one of the most popular and influential filmmakers in the history of cinema. In a career spanning more than four decades, Spielberg's films have covered many themes and genres. Spielberg's early science-fiction and adventure films were seen as archetypes of modern Hollywood blockbuster filmmaking. In later years, his films began addressing humanistic issues such as the Holocaust, the transatlantic slave trade, war, and terrorism. He is one of the co-founders of DreamWorks Studios.