'Ferrari': Adam Driver and Penélope Cruz on Transforming Into Their Characters (Exclusive)

Adam Driver, Penélope Cruz and Shailene Woodley chat with ET's Cassie DiLaura about their film, 'Ferrari,' in theaters on Dec. 25. The actors open up about working together, Penélope and Shailene praising one another despite sharing little time on screen. They also detail director Michael Mann's dedication to the film and how great it was to collaborate on this project with him. Plus, Penélope and Adam dive into their character transformations, from backstories to prosthetics and makeup.