The Dark Knight Rises is an upcoming American superhero film under the development of Christopher Nolan, David S. Goyer, and Jonathan Nolan. Based on the DC Comics character Batman, the film will be the third and final installment in Nolan's Batman film series. The Dark Knight Rises will see the return of Christian Bale, Michael Caine, Gary Oldman, and Morgan Freeman as Batman/Bruce Wayne, Alfred Pennyworth, James Gordon, and Lucius Fox, respectively. The film will introduce the characters of Selina Kyle and Bane—portrayed by Anne Hathaway and Tom Hardy—two central characters from the comic books. Nolan was initially hestitant about returning to the series for a third time, but agreed to come back after developing a story with his brother and David Goyer that he felt conclude the series on a satisfactory note. Filming has taken place across the world, including locations in India, London, Glasgow, Los Angeles, New York, and Pittsburgh. Nolan is opting to utilize the IMAX camera for more of the filming to optimize the quality of the picture. As with The Dark Knight, viral marketing campaigns began early during production to help promote the upcoming film. The Dark Knight Rises is scheduled for release in the United States and Canada on July 20, 2012, by Warner Bros.