Timothée Chalamet says he does not know if he will do many more films that require the investment that Bob Dylan biopic A Complete Unknown has done.

Speaking at the Berlinale press conference for James Mangold’s film, where Chalamet represented the film alone, Chalamet detailed the emotional and time investment the project has required from him.

“This is the last word - I’ve been going around the world talking about this for two months,” said Chalamet. “I love this man [Dylan] so much and this movie so much, I would do it for a year.”

Such efforts cannot be...