Helen Mirren: I'm Going to Frame Russell Brand's Underwear

Credit: Astrid Stawiarz/Getty Images

It's no secret that Dame Helen Mirren and Russell Brand, 35, got close while filming their upcoming comedy, Arthur. Very close.

The Oscar winner, 65, even admits that the comedian, who wed singer Katy Perry in October, gave him a pair of his underwear.

PHOTOS: Check out these celebrity odd couples

"I am going to have them framed!" Mirren joked to UsMagazine.com at the Producers Guild Awards Saturday. "And put them over my bed!"

The actress added that she's still close with Brand -- who once Tweeted a picture of her giving him a bath.

"We are best…we're really close friends," she told Us. "I wear the safety pin that he gave me around my neck all the time!"

And it seems Brand is equally smitten with the acting legend, whom he also starred with in 2010's The Tempest.

"I continue to be fascinated and infatuated with her and the more time I spend with her and the more I get to know her, the more the fascination increases," he told Us last year. "She is an incredible woman."