Dunst is about to start work on a film version of Jack Kerouac's novel On the Road, co-starring Sam Riley, Garrett Hedlund and Kristen Stewart. "It's a guy's story," she admits, "but the women had wild times, too. Their roles are smaller, but it's an epic and a good thing to be part of."
You can read her full interview here: source but this was the only mention of OTR. :)