The unidentified woman pulled off the daring move before the premiere of Clooney's new movie, "Suburbicon," over the weekend. And the Hollywood star took it in stride.
Festival organizers captured the encounter on camera and shared a snap to Facebook:
It soon found its way onto Reddit's "PhotoshopBattles" page, where users began manipulating the picture in all kinds of hilarious ways.
Here are some of the best reactions so far: