The Dark Knight has only just been released but already Johnny Depp and Angelina Jolie are being linked to the next Batman film. Depp is rumoured for the role of The Riddler- played by Jim Carrey in a previous Batman movie. Ange meanwhile is being talked up to possibly play Catwoman- previously portrayed by both Michelle Pfeifer and Halle Berry. Reports suggest The Dark Knight- which stars Heath Ledger as the baddie- has done so well that producers are already casting for the next instalment in the franchise. Another casting rumour suggests Phillip Seymour Hoffman could be the latest Penguin- after Danny De Vitos turn in Batman Returns. The Dark Knight has taken $440 Million worldwide. Christian Bale has already signed up to star for a third time as the caped crusader!