Emmys 2011: 'Boardwalk Empire's' Michael Shannon Skipping the Show

Michael Shannon – one of the breakout stars of 18-nominated Boardwalk Empire -- will not be at the Emmys on Sunday, nor will be attend the HBO after party at the Pacific Design Center.

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The actor -- whose performance in the upcoming indie Take Shelter is said to possibly garner him an Oscar nomination – can’t get away from his current Man of Steel shoot schedule in and around Chicago.

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He even canceled L.A. press dates this week he was meant to do for Take Shelter.

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Shannon appears as General Zod, the role played by Terence Stamp in the 1978 film Superman: The Movie.