Laura Dern chats with ET’s Matt Cohen at the Napa Valley Film Festival, where her new film, ‘The Son,’ screened before opening in theaters on Dec. 16. The actress, who was also being honored with the Legend Award, shares that Taylor Swift called her and wrote her a hilarious line for the ‘Bejeweled’ music video. Plus, Laura opens up about her voice appearing on HBO’s ‘The White Lotus.’