The Dark Knight Filming Update reports that Warner Bros. Pictures has set up The Dark Knight for filming at Leavesden Studios and that filming is also taking place at Herts & Beds.

The Chris Nolan-directed sequel, starring Christian Bale, Heath Ledger, Morgan Freeman, Michael Caine, Gary Oldman, Aaron Eckhart and Maggie Gyllenhaal, is expected to do a lot of filming in Chicago as well.

It opens in theaters on July 18, 2008.