Christopher Jonathan James Nolan (born 30 July 1970) is a British-American filmmaker, writer and producer. The son of an English father and American mother, Nolan is a dual citizen of the United Kingdom and the United States. He is married to Emma Thomas, his longtime producer. They have three children together and reside in Los Angeles. He often collaborates with his brother, author Jonathan Nolan, and actor Christian Bale. Nolan is best known for directing the psychological thriller Memento and for reviving the Batman film franchise as the director of Batman Begins (2005) and The Dark Knight (2008), for which he has received considerable acclaim, especially for the latter. He is also the founder of the production company Syncopy Films. Nolan most recently directed the science fiction film Inception starring Leonardo DiCaprio, which is due out Summer of 2010.