Kristen Stewart is knee-deep in promoting her final “Twilight” movie, but the producers of her upcoming film “On the Road” are not above cashing in on the publicity. They have dropped a new trailer that provides a new look at the principal characters.

The video is narrated by Sam Riley, who plays Sal Paradise, the fictional character who represents Jack Kerouac, the beat generation writer who penned the book on which the movie is based.

Kerouac hit the road with his traveling buddy Neal Cassady in the late 1940s to experience America. The book helped launch the Beat Generation in the 1950s, which ultimately spawned the ’60s era counterculture. Cassady’s alter-ego in Dean Moriarty.

Stewart plays 16-year-old Marylou, a free-spirited, free-loving teen who marries Moriarty and travels with the two on some of their misadventures. Stewart appears topless in the picture to accurately portray Marylou’s promiscuity.

The new trailer opens with a quick shot of a typewriter and the open road. Paradise explains how he met Moriarty soon after his father died. “Dean just raced through society. He’d just married a 16-year-old chick named Marylou,” he says in the voice over. “The coming of Dean Moriarty began the part of my life you could call my life on the road.”

The clip races through scenes of the movie and gives the most extensive look yet at the highly anticipated film.

Check out the clip below and click here to follow TheImproper on Twitter for more Kristen Stewart updates you can trust.