Scooper 'pictaker' took these photos of what looks to be Heath Ledger on The Dark Knight set. Ledger plays the Joker in the highly-anticipated sequel to Batman Begins, which is currently filming for a July 18, 2008 release. The Chris Nolan-directed movie co-stars Christian Bale, Morgan Freeman, Michael Caine, Gary Oldman, Aaron Eckhart and Maggie Gyllenhaal

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