Paris Hilton got to Cannes late because she forgot her passport and couldn’t get on a flight from Madrid to Nice last week to join sister Nicky and brother Barron. Nicky was overheard telling friends on the Neuro Drinks yacht, “She had to turn around and get another flight.” But Hilton did make it in time to join her family for the Monaco Grand Prix on Sunday. The next night, Salma Hayek and Francois Pinault joined Diana Jenkins for a dinner aboard the yacht. Lawrence Bender hosted a party after the premiere of the documentary he produced, “Countdown to Zero,” but spies say he wore an eye patch all night because of an injury. Joining him were Naomi Watts and Valerie Plame, the former CIA agent she plays in “Fair Game.” Also on board: Meg Ryan, Queen Noor of Jordan, Harvey Weinstein, Cuba Gooding Jr., Chris Tucker and Richard Branson.