A star-studded and glitzy red carpet was brought to an abrupt and temporary stop tonight when a man leapt behind actress America Ferrera and tried to climb under her dress.
The Ugly Betty star wore a plunging cream dress with puffed out skirt for the How To Train Your Dragon 2 premiere, and smiled happily for the cameras before the shocking drama unfolded.
Cameras caught the moment a man, dressed in black tie, leapt on to the red carpet behind her and tried to lift her dress and climb under.
Another shot shows minders rush to pull him away as America attempts to stand upright.
While some men pulled both of his legs, more held him down as he kept one arm stretched out to try and keep a hold of his target.
America didn't appear to have been hurt in the incident.
It all happened as she stood with stars including Cate Blanchett to have a group photo taken - with her back to the public.
Cate can be seen looking round shocked as she watched the action unfold in front of her here.
Wearing a black and gold patterned dress, the blonde babe looked as glam as ever with her hair scraped back and a smile on her face.
She joined more huge names including Naomi Watts at the annual festival in France tonight.
There are 18 films in competition for the coveted Palme d'Or, which will be handed out along with other prizes at the end of the festival on May 24.
Video here (@ 1:05):