Cherie Currie's teenage rape ordeal was axed from the storyline of the new The Runaways biopic - because writer/director Floria Sigismondo didn't want the Cherry Bomb singer to lose her innocence at the beginning of the movie.

Currie, who is portrayed by Dakota Fanning in the new film, admits there was a sexual assault that inspired her whole look, but Sigismondi didn't want to dwell on an incident before the rocker formed the band with Joan Jett.

The rock star reveals, "There were particular reasons why I cut my hair into a (David) Bowie haircut. That was because when my twin sister's boyfriend found out I was a virgin, he decided to take my virginity at force. I cut my hair kind of in retaliation of that.

"But the filmmakers felt that I would be losing my innocence too early in the film."

Currie admits it's one of the only things about the new biopic she takes issue with: "I thought, 'Why is she (Dakota Fanning's Currie) just cutting her hair?' It didn't make sense going from this surfer girl to this tough chick without an explanation."