Elvis Presley’s ex-wife Priscilla has walked the red carpet alongside Austin Butler at the star-studded Cannes premiere of Baz Luhrmann’s highly-anticipated Elvis biopic. The American actress, 77, wore a brown beaded dress as she stood beside the 30-year-old actor, who plays the ‘King of Rock and Roll’ in the forthcoming movie. They were joined by fellow stars of the film including Oscar-winning actor Tom Hanks, who plays Elvis’s enigmatic manager Colonel Tom Parker, Olivia DeJonge, who portrays