KJ Apa chats with ET's Nischelle Turner at CinemaCon in Las Vegas about Mr. Fantasy and his film, 'Jimmy,' in theaters on Nov. 6. The 28-year-old actor reacts to fan theories that his musical alter ego is Mr. Fantasy and shares what he thinks of the over-the-top singer. Plus, KJ breaks down how he got into character to play actor James Stewart and how he nailed his transatlantic accent. He also react to 'Riverdale' co-star Camila Mendes saying fans should 'skip' season 6 if they're doing a rewatch and shares which seasons of the teen drama he likes the most.
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