From sheer tops and long trains to extravagant hairstyles and avant-garde creations, take a look back at some of the most eye-catching ensembles to hit the Cannes Film Festival red carpet over the years.

There's complex etiquette and a rich history behind the French film festival's red-carpet ban of "naked" or "voluminous" dressing.

CANNES, France — The Cannes Film Festival red carpet is perhaps the most rigidly controlled red carpet in the world. Now, the festival has added a new stipulation: no nudity.