Redboxed this one tonight. SD DVD not Blu because the box only had it on DVD and since I reserved it online, it doesn't tell you that. In any case, it was a pretty good flick. Very good acting, particularly the Twilight chick as Joan Jett and Dakota Fanning as "Cherry Bomb" Cherrie. Very good sound for a DVD and though it does seem to capture the idea, I am not sure it is as gritty as the real story probably was. As movies about music/bands go, I'd say this one was pretty good overall. Good one for fans of The Runaways/Joan Jett, and rock "films that rock" (VH1) in general. NOT a chick flick. Definitely worth a rental.