The daughters of Prince Charles of Bourbon-Two Sicilies, Duke of Castro, and his wife, Princess Camilla, enjoyed an evening among film stars as the festival opened this week.

Robert De Niro hits the Cannes red carpet with partner Tiffany Chen, plus Eva Longoria, Selena Gomez and more. From L.A. to France and everywhere in between, see what your favorite stars are up to.

Nowhere is the border-crossing nature of cinema more evident than the Cannes Film Festival, which kicks off on Tuesday in the wake of U.S. President Donald Trump's vow to enact tariffs on international films.