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ctress Julia Roberts laughs in the face of strict fashion rules.

Vanityfair.com reported the actress stepped onto the red carpet at the premiere of Money Monster, the new movie in which she stars with George Clooney and is directed by Jodie Foster, in a fairly straightforward black gown. The neckline is actually evocative of the famous red dress Roberts wore in Pretty Woman.

When Roberts lifted up the skirt of her Armani Privé gown at Cannes Film Festival, however, she had a huge surprise waiting underneath. The actress was barefoot.

This blatant act of fashion rebellion comes just a year after festival organizers allegedly turned away a group of women in their 50s from a screening of Carol for not wearing high heels.