Warner Bros. has provided us with two brand new images from The Dark Knight, including a nice behind-the-scenes shot of director Chris Nolan filming Heath Ledger as The Joker.

The Dark Knight Picture

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The Dark Knight Picture

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In an unprecedented move, director Christopher Nolan is filming four sequences in the next installment of Warner Bros. Pictures' Batman franchise, The Dark Knight, with extremely high resolution IMAX cameras using the giant 15/70 film format. While it is not unique for a feature lensed on traditional 35mm film to be re-mastered to screen in IMAX theatres, this marks the first time ever that a major feature film has been even partially shot using IMAX cameras, marking a revolutionary integration of the two film formats.

The marriage of footage filmed with IMAX and 35mm cameras in the final feature will have a major impact on the audience's viewing experience, whether seeing The Dark Knight in an IMAX or traditional theatre.

The first of the scenes, including a prologue that introduces Batman's arch-nemesis The Joker, was shot in April, several weeks in advance of the actual start of principal photography. Additional selected scenes are being filmed with IMAX cameras during the course of production on The Dark Knight.

The Dark Knight arrives in theatres on July 18th, 2008.