Star Magazine / Promotional 1 / 9
Star Magazine / Promotional 1 / 9

Margot Robbie is no home-wrecker. The Australian actress, 23, made that very clear on Twitter in the wee hours of Friday, Nov. 8, amid rumors that she has been hooking up with her married "Focus" costar, Will Smith.

"Been working nonstop, just catching my breath. There's absolutely no truth to the ridiculous rumor in Star mag," she tweeted. "It's disappointing that goofing around on set could be taken so out of context."

PHOTOS: Famous cheating scandals

The "goofing around" she refers to is what sparked the cheating rumors in the first place. She and Smith, 45 -- married to Jada Pinkett Smith for 16 years -- recently took advantage of a photo booth at their film's wrap party. Pictures show them joking around and flashing the camera, but sources told Us Weekly the two were just having fun.

PHOTOS: Will and Jada, then and now

"They're not hooking up," one insider told Us. Added another, "That was a photo booth on set that the producers got for everyone. It was the last day of filming and everyone was taking pictures. They were just goofing around. Will is just like that. There's nothing more to it."

PHOTOS: Famous families

As for his relationship with Pinkett Smith, with whom he has two kids, Willow and Jaden: "Everything with them is great," the second source told Us.


Celeb hair: better long or short?

Celeb plastic surgery transformations

Celebrity PDA