Aishwarya, 41, rocking an emerald-green Ellie Saab gown, posed with Longoria, 40, who dazzled in a midnight blue gown with a structured train.
The actresses, who are brand ambassadors of L'Oreal Paris, seemed to have got along well with each other.
The duo did a shoot for the cosemtic brand and had fun afternoon together on set.
Aishwarya has been a regular at Cannes and her 14th appearance at the red carpet saw her joining international beauties Longoria, Salma Hayek and Parker Posey.
