Helen McCrory and Damian Lewis arrive at the White House. (Charles Dharapak/AP)

Also noteworthy: Anna Wintour (see image below) opted for a more formal look than she did in her last state dinner appearance last year.

Elizabeth McGovern and her husband Simon Curtis (Charles Dharapak/AP)

Anna Wintour arrives with longtime love Shelby Bryan (Charles Dharapak/AP)

Idris Elba — Stringer Bell of “The Wire” — arrives at the White House. (Charles Dharapak/AP)

View Photo Gallery: President Obama and first lady welcome British prime minister David Cameron and wife for a state dinner at the White House.

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