Jason Isaacs recently attended the press night of Sister Act in London, during which time he spoke about his young Harry Potter co-stars, Daniel Radcliffe, Rupert Grint and Emma Watson. He discusses how the three actors have not been spoiled by fame and wealth as a result of being the leads of the Harry Potter franchise:

It would be so great for the press if one of them would go off the rails and end up in rehab, but they are, actually, just really sweet guys."

They can fall backwards on their mountains of cash," he said. "It doesn't matter. They're really talented and they've got each other as close friends, which is all that matters because no one else has been through the same thing.

What is amazing about them is that they are still respectful and have humility and work ethic. I have met and sometimes worked with their American equivalents and they have none of those things.

Jason also talks about what route he believes Dan will take when he gets older:

Daniel will potentially be a great director or producer. He's very interested in behind-the-camera work. Remember, they have spent more hours in front of the camera in the last decade than most people have in their entire career.

Photos of Jason at the press night event can be seen here, courtesy of Snitch Seeker.