Gwyneth Paltrow: Yes, I Cannes Do The French Riviera!!!

Even Tony Stark would be jealous of the rental Gwyneth "Pepper Potts" Paltrow had this week in Cannes.

Gwyn hit the French Riviera for the Cannes Lions festival, and while celebs usually stay in swanky hotels -- she opted for a 7 bedroom, 7 bath villa through Airbnb.

It's not hard to see why she chose the cliffside crib overlooking the Mediterranean. It would go for about $40 mi on the open market ... so it's definitely up to Goop standards.