In early 2003, Nolan planned to direct the film before the production of "Batman Begins" accelerated. Following the release of "Batman Begins", Nolan started up the project again, negotiating with Jackman and Bale in October 2005. While the screenplay was still being written, production designer Nathan Crowley began the set design process in Nolan's garage, employing a "visual script" consisting of scale models, images, drawings, and notes. Jonathan and Christopher Nolan finished the final shooting draft on January 13, 2006, and began production three days later on January 16. Filming ended on April 9.