Credit: Macca/Todd G/Splash News

Nothing up in the air about this!

George Clooney and Stacy Keibler went public with their romance in a big way over the weekend at the Toronto Film Festival.

In a brand-new pic taken Saturday night, a dapper Clooney, 50, and a stunning Keibler, 31 (clad in a short black mini-dress and sexy heels) beam as they leave a high-profile bash.

Before former wrestler (and Dancing with the Stars contestant) Keibler headed out for her big night Saturday, she Tweeted about her time in the Canadian city. "Loved my vintage @armani dress last night," she wrote "Thinking about wearing @armani again tonight :) Having a blast at #TIFF."

Next, she showed off her spiky, strappy shoes in a WhoSay pic. "Do u guys like these christian loubs? I feel like they r not only a shoe but if needed, a weapon also..."

By Sunday afternoon, she was back on a plane reportedly headed for L.A. "I'm on a plane w/ wifi watching on iPad! LOVE technology. GO RAVENS!"

Onlookers told Us Weekly that Keibler was no mere arm candy to her man at two Saturday bashes. "Stacy had her own conversations going on and that she wasn't following Clooney around like a puppy dog," a source said.

"The two clearly work not only as a pair, but also independently. [Stacy] really stood on her own," a witness added. "George was not overprotective and didn't have to look after her."