"I've got quite a surreal mind anyway, so I don't think it's made much difference to how I see everything," he told Time magazine. "That's what's weird: I don't think of it as being that bizarre."
Radcliffe was first cast as Potter when he was 11. Since then, a lot has changed: he's taller and his face has become more defined, his voice has changed, he's got complexion issues and is growing starter stubble.
For director Mike Newell, that causes problems.
"I've just been working on a scene which we shot in our first week, and Dan still looks like the little kid that he was in "Sorcerer's Stone," he told Time. "Now, 11 months later, he doesn't look like that at all."
Radcliffe is still waiting for one teenage milestone, a girlfriend. Have sparks flown between him and Emma Watson, who plays the nerdy Hermione Granger?
"No. But I had a big crush on her when I first met her, definitely," he said. "But she's more like a sister now, so it would be a bit incestuous. It's too weird."