Taking on the role of Bob Dylan for James Mangold’s A Complete Unknown, Timothée Chalamet sang Dylan’s songs so well that people on set debated whether he was lip-syncing or not. He also used a method approach to staying immersed in his role.

The “Dune” actor, who stars in the new film “A Complete Unknown,” out Dec. 25, admitted he was “panicked” to take on the role of the iconic “Like a Rolling Stone” crooner.

Timothée Chalamet immersed himself as Bob Dylan in the biopic A Complete Unknown, which his co-stars were supportive of. In a new interview, co-star Edward Norton opened up about seeing Chalamet’s process into playing the singer-songwriter in the James Mangold-directed film.