VIDEO : Sean Penn's New Film About Aid Workers in Africa' Competing at Cannes Festival

PARIS (AP) ? A Sean Penn film about aid workers in Africa and movies about interracial marriage and cannibal fashion models are among the selections for this year's Cannes Film Festival. The 20 films from 28 countries announced Thursday will compete for prestigious Palme d'Or at the May 11-22 festival on the French Riviera, which is being held with extra security after attacks on France and Belgium. Others include "Loving" by American director Jeff Nichols about a black-white couple in the U.S.