As the 59th annual Cannes film festival opens tonight, the mood is buoyant and everyone is on their best behavior. Like students on the first day of school, attendees sit up straight at the screenings, they have impeccable manners, and they conduct themselves charmingly when photographers are around. But as the 12 days of the fest wear on, people tend to … well, they relax a little bit. With a combination of jetlag and fest fatigue, they become a little less guarded — and a lot more fun. Don’t believe it? Here are some photos from the last few days of the 58th festival.