Sadie Sink Shares How Taylor Swift and Stranger Things Helped Prepare Her For Spider-Man (Exclusive)

Sadie Sink chats with ET's Emily Curl about how starring in 'Stranger Things' and Taylor Swift's 'All Too Well' short film helped prepare her to take on her mystery role in 'Spider-Man: Brand New Day.' The Tony-nominee reflects on some of her most high-profile projects, and shares why she never found it difficult to keep her role in the MCU a secret. 'Spider-Man: Brand New Day' swings into theaters on July 31.