02/23/2012 08:12 am ET

'Downton Abbey': Shirley MacLaine Tweets Filming Updates

"Downton Abbey," the British drama that has become a hit for PBS Masterpiece in the United States, has just started filming its third season. Veteran American actress Shirley MacLaine has been cast as Martha Levinson, the mother of the American-born Lady Cora, female head of Downton.

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