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The jury member and American actress Kristen Stewart poses on the red carpet during the premiere of the film "Knife + Heart "(Un Couteau Dans Le Couer) at the 71st Cannes International Film Festival in Cannes, France, on May 17, 2018. The 71st Cannes International Film Festival is held from May 8 to May 19. (Xinhua/Luo Huanhuan)