Sandra Bullock and boyfriend Bryan Randall are about to take things to a whole new level. Breaking Celebrity News can exclusively reveal that the couple is planning a top-secret wedding in just a few weeks!

According to an insider, even friends aren't in the know just yet. A source close to the Gravity star told Breaking Celebrity News that while Bullock has flat-out told pals that there will be no ceremony in the near future, while continuing with her secret plans.

"Bryan's already asked her dad for her hand and they're fleshing out a prenup," the insider said.

The itinerary also includes: "a very small ceremony with family only at one of her homes outside of LA," the source told Breaking Celebrity News.

Still, definite details likely won't be announced until after the couple's special day. Bullock, 51, is notorious for keeping her personal life on lockdown until she's ready to publicly announce updates. When adopting her daughter Laila in December, she steadfastly denied Breaking Celebrity News's report on the new child for months before admitting the truth.

Now, the wedding "will be just like her adoptions," the source told Breaking Celebrity News. "Total stealth and top secret and everyone will find out after it's all done and dusted."

As Breaking Celebrity News previously reported, Bullock and Randall have been head-over-heels in love since they first started dating just over a year ago. Randall even moved into her 5-bedroom estate last fall!

Bullock was previously married to Jesse James from July 2005 until March 2010, when it was revealed he had been cheating on her with multiple women. Randall was previously engaged and has a daughter, Skylar, in her 20s.