In new comments to TimeOut London over the weekend, Radcliffe reveals that he didn’t film scenes for the Wizarding World of Harry Potter expansion in Orlando because he’s “done so much work to establish [himself] as something outside that series.”
“…The theme parks are expanding and there was an enquiry whether I’d do more filming from them and I was like: No, I can’t get away with that any more, I’d just look foolish. I’d never totally close the door [to returning to Potter] for the reason that Jo’s a great writer. But no more school boy stuff.”
He added, “I’m 23, which is too old to be running round in a school boy’s cape.”
We have to assume that if Bonham Carter and Grint were asked to film scenes for the Gringotts ride at Universal Orlando then Radcliffe would’ve gotten a call as well. Grint’s publicist confirmed earlier this year that the red head did indeed shoot scenes.