Timberlake poses at photocall for 'Inside Llewyn Davis'

'Soshite Chichi Ni Naru' screens in Cannes

'Nebraska' screens in Cannes

Critics had also considered as a forerunner "Inside Llewyn Davis" about a struggling New York folk singer by the American Coen brothers Ethan and Joel, which was named as runner-up.

The third prize went to Japanese director Kore-Eda Hirokazu for the baby-swapping drama "Soshite Chichi Ni Naru" (Like Father, Like Son) while the best director award went to Mexico's Amat Escalante for his brutal look at Mexico's drug war, "Heli".

American Bruce Dern, 76, won a best actor award in Alexander Payne's road trip film "Nebraska," beating out Michael Douglas, who was widely praised for his performance as flamboyant pianist Liberace in Steven Soderbergh's "Behind the Candelabra."

French actress Berenice Bejo ("The Artist") won the best actress award in Iranian director Asghar Farhadi's tense domestic drama "Le Passe" (The Past).

Before the ceremony, stars including Kim Novak and Laetitia Casta signed autographs and posed for photographers on the red carpet in blazing sunshine, a contrast to the festival's opening ceremony on May 15 when umbrellas took over in the rain.

The awards ended the 2013 edition of the world's largest film festival, where up to 40,000 film professionals also bought and sold titles on the bustling marketplace hidden away from the glitzy promotional circuit of parties and stunts.