visited the SiriusXM Studio in New York City on Tuesday (July 10).
Looking ravishing in a simple white frock, the German-born actress was on hand to promote Farewell, My Queen
, her new flick which takes a look at the relationship between marie antoinette
and one of her readers during the final days of the French Revolution.
Meanwhile, Diane says sleep is the key to looking your best.
The 35-year-old star - who is in ...