"The Square," by Swedish director Ruben Ostlund, won the top prize at the Cannes Film Festival on Sunday. 

This film tells the story of art gallery curator Christian, a divorced but devoted father of two girls. It is a satirical exploration of the art world.

Ruben Ostlund punches the air as he poses with his prize /AFP Photo

"The Square" was seen by many as an unexpected but solid choice for the prestigious award.

The Grand Prix, often seen as the runner-up to the Palme d'Or, went to French director Robin Campillo for "120 Beats per Minute." The Camera d'Or, for a first feature-length film, was awarded to French director Leonor Serraille for "Jeune Femme." The Jury Prize was given to Russian filmmaker Andrey Zvyagintsev for "Loveless."

Qiu Yang (middle) /Sina Photo  

Chinese director Qiu Yang won the prize for best short film for “A Gentle Night.”

Other winners at the 70th Cannes Film Festival included German Diane Kruger for Best Actress in the Fatih Akin-directed "In the Fade," American Joaquin Phoenix for Best Actor for "You Were Never Really Here" directed by Lynne Ramsay, and American Sofia Coppola for Best Director for her film "The Beguiled."