Newsbeat reporter in Cannes
The 61st Cannes Film Festival has opened with the premiere of Julianne Moore's new film Blindness.
Julianne Moore (middle) arrives for The Blindness premiere in Cannes
Thousands of movie fans and media packed the streets to see the stars take to the red carpet for the opening event.
Blindness sees the Oscar nominated Moore play a woman who can see, in a world where people are rapidly losing their sight.
The "white blindness" soon takes over, with the victims being quarantined in what can only be described as a mental hospital from hell.
Moore said: "The first day we went in and looked at the sets. They'd done such a great job we were almost sick."
The star follows her blind husband into the nightmarish "society of the blind", but keeps her sight a secret from everyone else.
She then uses her advantage to help other victims.
Blindness is directed by Fernando Meirelles who won huge praise for The Constant Gardener.
It also stars Mark Ruffalo who was in Zodiac and Eternal Sunshine of the Spotless Mind, and Danny Glover of Lethal Weapon fame.
It is one of the 22 films being judged for the prestigious Palm D'Or award by a jury including Sean Penn and Natalie Portman.
Ironically for a movie where Julianne Moore's appearance shouldn't matter, she decided to dye her hair blonde. But she's not staying that way.
She added: "I thought red hair was too strong for this film. But I don't want to do it again, I don't like it very much."