"How does it feel?" is one way by which to measure a movie. But if you've seen "A Complete Unknown," the Bob Dylan biopic that opened on Christmas Day, you may have left the theater singing to yourself (to the tune of "Like a Rolling Stone"): How much is reeeaaallll?

Timothée Chalamet stars as Bob Dylan in "A Complete Unknown," which is currently in theaters. Here’s when you can expect to watch the biopic from home.

"A Complete Unknown" director James Mangold and Edward Norton (as Pete Seeger) weigh in on what's fact and what's fiction in the Bob Dylan movie.