Can anyone best Christopher Walken for acting with hair? Possibly the worst head of hair in film history (all things considered), and yet distinctive and very much a part of his characterizations:
Ebab, nice call on Violet Parr from The Incredibles. The software engineers at Pixar had to design new "particle generators" for Sully in Monsters, Inc. Violet's long hair was a new challenge when that movie came along.
There's not a moment in the film where it isn't flowing majestically in the wind, but that's true of most Disney Princesses.
I saw BRAVE, and while I don't think the main character's hair gave a performance, I will give Mr. J extra credit for recognizing that her hair was VERY MUCH a character in the film, without a doubt.
Based on what I've seen in the theatrical trailer, Bobby Cannavale let's his follicle strands do all the work in "Blue Jasmine", as he channels Stanley Kowalski.