According to a report in showbiz trade publication Variety, a character who appeared to have died at the end of Christopher Nolan‘s Batman Begins is appearing in the latest Batman movie, The Dark Knight Rises. Sources told the magazine that Liam Neeson has been spotted in London, filming scenes in character as Bruce Wayne’s mentor and nemesis, Ra’s al Ghul. Warner Bros. Pictures have refused to comment on Neeson’s appearance, stating it is “simply not policy when it comes to the Batman films that Nolan and company make.” Christian Bale is returning to his role as Batman, while The Social Network‘s Josh Pence will play the younger version of Ra’s al Ghul. The Dark Knight Rises will be released July 20, 2012.