"Bits of my body are all right, but bits of me are horrible," the 65-year-old star tells November's Woman & Home, according to the Daily Mall. "To be honest, anything from the waist down I don't really like."
Not that she has anything to be ashamed of. The Brit beauty made jaws drop and inspired seniors to start wearing sexier swimwear after she was photographed looking toned in a two-piece in 2008. In truth, she tells the magazine, she was holding in her tummy.
"I don't know why, but I do, by nature, hold my tummy in," she says, calling it a "trick for making you look and feel good."
Another of her confidence boosters? "Four-inch platforms give you great height and make your legs look unbelievably long," says Mirren. "I used only to be able to get them in stripper shops, but now you can buy them everywhere -- although, unfortunately, that means everyone else has discovered the trick too."
Despite having recently posed topless for New York magazine, Mirren says that as she gets older, she'd much rather keep covered up. And she's particularly up in arms about the abundance of sleeveless dresses on the market.
"My big complaint is, why aren't more dresses made with sleeves?" she says. "I don't want to wear a frumpy jacket over a sleeveless dress and it enrages me that it's so difficult to find anything beautiful with sleeves.
In related news, check out the stunning scarlet number Mirren wore to the Venice Film Festival.