Making their arrival to Cannes, Alain in a dark suit (probably grey) and Romy & Sophia wearing similar white ensembles with eye catching hats.
Outside the Carlton they were greeted by a crowd of fans, visitors, and photographers.
Alain & Romy had lunch with others of their entourage at a Villa in Cannes. Delon changed his dark suit for a white suit and black shirt.
Later that night the 3 of them attended the Festival at the Palais des Festivals et des Congres. Alain Delon was promoting during this festival "L' Eclisse", a film in which he costarred with Italian actress Monica Vitti. This film won 1962's Jury Special Prize.