A Hollywood love letter to Bob Dylan, with all that implies, “A Complete Unknown” works well on its chosen, extremely glossy terms. Its craftsmanship is formidable. Then again, you don’t necessarily need quality to sell one of these things,

The actor spent years preparing to play the legendary singer, learning the harmonica and guitar in the process.

Timothée Chalamet as a young Dylan is excellent, but it’s Edward Norton as Pete Seeger who really steals the show.