In an age ruled by neatly slicked buns, it’s easy to forget there was a time before extra-hold gel — when hair was encouraged to expand rather than contract.

In A Complete Unknown, Fanning stars opposite Timothée Chalamet as Sylvie Russo, a fictionalized version of the real-life Suze Rotolo, an artist and Bob Dylan’s girlfriend in the early ’60s.

When A Complete Unknown officially drops in theaters on Christmas Day, we're going to be thrust into the early '60s in a major way. And the best way to make this callback to a bygone era feel a little more realistic?