Actor Timothée Chalamet made a surprise appearance at his lookalike contest in the US on Sunday, an event that drew hundreds of onlookers. Chalamet posed for photos with his doppelgangers, some of whom had dressed as his characters in 'Wonka' and the 'Dune' movies. Police ordered the large group to disperse for an "unpermitted costume contest" and arrested a lookalike.