Scarlett JohanssonScarlett Johansson's known for keeping mum about her personal life.

But she's made a tiny exception by revealing a few details about her marriage to Ryan Reynolds.

The sexy siren dished some dirt in an interview with the Australian edtion of Harper's Bazaar.

Scar explains that the reason she kept her nuptial details so water tight is because she believes it's important to keep certain things personal in Celebville.

"You have to protect some things, even if it's a silly detail like who designed your dress. It was private, which is what I really wanted," she said.

"I've never been the girl wRyan Reynoldsho thought of the big dress, the big ceremony. I'm more low-key than that. Most people want photographers at their wedding, but for us it was, 'How do we leave them out?' "

And just like any lucky gal out there, Scar says when Ryan got down on bended knee, she couldn't help but get emotional.

"I wasn't surprised that it was happening, but anyone being presented with a beautiful diamond ring, as a girl, you just squeal with delight," she said.

"You say you can't believe it, but of course you really can. I think all proposals are romantic. It was very down to earth and genuine. There was no crazy skywriting or anything like that, just nice words, it was very sweet."

With regards to the tabloids interest in her personal life, Scar just thinks it's a bit of a laugh.

"I was just talking to my publicist and he said, 'You're either pregnant or divorced today.' And I was thinking 'What the hell are they talking about? I'm 24,' she said.

"I mean, I got these calls that I was engaged way before it happened. I've also been pregnant several times. With, like, sextuplets. That must mean I've been eating too many bagels or something. I'm not pregnant and I'm not going to be any time soon."