Rupert joins the interview at 11:18 and discusses playing Cheetah Chrome on screen, an edgier role for his post-Potter career, and his interest in the punk music scene.
Cheetah also talks about how he felt to have Rupert playing him in the film:
“I think he did a brilliant job… He had the voice dead on, and I was really, really happy and very honored to have him play me.”
When asked how he integrated the drug lifestyle surrounding CBGB into his portrayal of Cheetah, Rupert explains that he used a mumbly voice, to which Cheetah adds "that was my advice… the mumble."
"It was very helpful…" Rupert adds, "particularly with the American accent – I could hide that behind the mumbling."
Thanks to CBGB's PointBurst for the heads up on the interview!