Rupert Grint recently chatted about playing The Dead Boys' guitarist Cheetah Chrome in the upcoming biopic CBGB in a recent interview with Vulture. The actor commented on working alongside former Harry Potter costar Alan Rickman and what that was like, as well as the truth about him not being on Twitter. CBGB is set to be released this Friday in the U.S.

Vulture: Every Twitter feed claiming to be you doesn't seem like it's really you. Are they impostors? Are you even on Twitter?
Rupert Grint: No, I'm not. If you saw one, that would be a fake one, yeah. I don't know. It's weird that people pretend to do that, pretend that they're me. But I've never done Twitter. A lot of people have already said that I should give it a go, but I don't think I'd be very good at it! It's just not something ... I'm not great at any of those things, really. Maybe one day, though.

Not as naked as the scene in which you drop trou!
Rupert: Oh, right, yeah. Yes. That was quite fun. I didn't really think about it until I had to do it, but it was kind of quite a tricky process. I think in the end, we needed a sock contraption. [Laughs.] So that kind of worked. That was the first time I had ever done anything like that. Justin Bartha had to do a lot more, actually. He had to get his waxed. So there was a lot of preparation there. Luckily, I don't have that issue.

And you didn't end up having to hide any butt tattoos, either, right? Tom Felton started a rumor during the promotion of Harry Potter and the Deathly Hallows that you guys were all going to get cast tattoos, à la The Fellowship of the Ring. I think it was something like lightning bolts on your left buttocks?
Rupert: Oh, yeah. I kind of vaguely remember that. I'm still up for that. We were actually seriously thinking about it. It wasn't just a joke. There were loads of people that said, "We'll get them." To mark the end of an era, I guess. But it never actually happened in the end. If I did do it, they have cover-up makeup, right? I could cover it up if I had to? That would work.

Cheetah Chrome was also on set, and he even did a cameo as a cab driver. Did he give you any tips?
Rupert: Yeah, he was great. It was just amazing to sit with him and talk to him, about when he was so heavily addicted to drugs and living such a wild lifestyle. It's quite special when you're playing someone as they're watching you on set. I felt a little self-conscious about getting the movement right, so there was a bit of pressure, but it was special to get to know him.

Did you feel any echoes of Ron and Snape in the scene where Cheetah first meets Hilly? Because you're being so polite and calling Alan Rickman sir ...
Rupert: Yeah, I was kind of getting flashbacks. I love Alan. He's one of my favorites, and he was completely transformed. I was surprised when I saw him. He was just completely in that zone, as he was when he was Snape, when he was quite intimidating. And yeah, when I was doing that first scene, it was weird! I was getting flashbacks of when I was 11, because I kind of grew up with him, really, in a weird way, so he's been in my life for a long time. So it was kind of cool to see him out of that world and in a completely new environment.