How big is Elizabeth Olsen's part?

Well, this is from an interview with John Krokidas, the director:

http://www.vulture.com/2013/10/5-things-first-time-directors-arent-tol d.html

For me, the hardest darling to kill was cutting down Elizabeth Olsen's performance as Edie Parker, Jack Kerouac's girlfriend, in order to excise that extra half of the movie that needed to go. She had an amazing arc and her performance was nuanced and beautiful, but that arc had to be sacrificed for the good of the movie. And the thing that sucked is that I knew I would get reviews saying that Elizabeth Olsen was underused, and I did, and it hurt. What hurt even more than that, though, was knowing that I would have to call Elizabeth to tell her that several of the scenes that we had worked on together were not, ultimately, going to make it into the theatrical cut. And God bless Elizabeth Olsen: She not only took the news like a champ, she said, "John, I'm not the kind of actor who puts her own performance above the whole film. I understand that this is part of the process."

She has 5 scenes, about 10 minutes i'd say, she's good though.

As with most of the women in the film her part was woefully short. I would have liked to see more of her.

"Don't sit down because I've moved your chair"... Alex Turner