Gwyneth Paltrow arrived in Paris fresh off the Eurostar train from London yesterday. She's in France ready to partake in some of the Couture Fashion Week goings-on alongside her good friend Cameron Diaz. Cameron arrived in Europe a few days ago and has already logged time in the front rows of the Versace, Dior, and Chanel shows. Gwyneth and Cameron have hung out in London and NYC in recent months, memorably opening the Arts Club in the UK with Prince Philip. Now, they'll likely put Paris on their party map, too. The fun has already begun for Gwyneth, who tweeted last night about having eaten a great meal. She wrote, "Perfect Japanese food at Shu in Paris. Hidden gem. Will have to have french fries for breakfast."