(Photo credit: Marc Hom)

Anna Kendrick is known for playing control freaks on screen, but in the September issue of GQ, the 28-year-old actress cuts loose.

Showing off cleavage in a sexy black bra, the "Up in the Air" star talked about the challenges of being approached for autographs while underwear shopping.

"There's something deeply embarrassing about being approached when you're holding knickers. And it's happened TWICE!," she told the magazine.

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The actress plays one half of a functionally alcoholic couple in her new comedy, "Drinking Buddies." In GQ, she cops to enjoying beer - "every single Belgian-style beer," in fact.

She told the magazine that she "highly" recommends drinking … "if sex is off the table, and you're like, 'Let's try to get to know each other.'"