Slideshow: Al Gore continues his fight for the environment at Cannes

Al Gore poses at the top of the stairs with his partner, Elizabeth Keadle, and his team. Also with him is France’s former minister of the environment, Ségolène Royal, third from the right.

Jean-Paul Gaultier, an icon of French fashion and a member of the jury of the Cannes Film Festival in 2012, walks the red carpet with a model.

The Portuguese model Sara Sampaio climbs the steps in a long transparent dress.

The Cannes Film Festival paid tribute to French filmmaker André Téchiné. Here, the veteran poses with several of his former actresses: Isabelle Huppert, Catherine Deneuve and Emmanuelle Béart.

France Médias Monde CEO, Marie-Christine Saragosse, walks the red carpet with Filipino filmmaker Brillante Mendoza and several other directors from Southern countries.

The three actresses from the movie "Waiting for the swallows", Nadia Kaci, Aure Atika, and Hania Amar, pose on the red carpet. Their film is one of the 20 in the “Un Certain Regard” section.

Irish actor Colin Farrell stars in the latest film by Greek director Yorgos Lanthimos, "The killing of a Sacred Deer", which is part of the official competition of this 70th Cannes Film Festival.

The team from the film "The killing of a Sacred Deer", starring Colin Farrell and Nicole Kidman, poses before the premier.

A visibly moved Nicole Kidman is joined on the red carpet by her husband, singer Keith Urban.

French actor Mathieu Kassovitz appeared for his latest film, "Happy End", by Austrian director Michael Haneke. The movie is in official competition.

Isabelle Huppert and Jean-Louis Trintignant appear alongside Austrian filmmaker Michael Haneke, two-time Palme d’Or winner. His latest film, “Happy End,” has received tepid reviews.