Van Roy sued French director Luc Besson for rape in 2018 but the case was ultimately dropped by prosecutors. The actress, who had a starring role in Besson's "Valerian and the City of a Thousand Planets", walked the red carpet at the gala here on Sunday, reports deadline.com.
She stepped in front of the cameras for an event honouring French actor Alain Delon and revealed a large temporary tattoo on her back that read: "Stop Violence Against Women", along with the #MeToo movement symbol.
The festival has faced criticism for its decision to give Delon an honorary Palme d'Or after he previously talked about slapping women, opposing adoption for same-sex couples and showing support for far right politician Jean-Marie Le Pen.
Cannes chief Thierry Fremaux recently defended the