Ocean's Twelve and Harry Potter & the Goblet of Fire: During a recent interview with U.K.'s Sunday Herald, actor Robbie Coltrane talked about his proposed involvement in a few highly anticipated projects...

On Harry Potter & the Goblet of Fire...

I ask whether he will sign on for the final three films. “I don’t know. I really don’t know what the circumstances will be for the last three. I don’t know if I should be saying this, although if anyone has got any brains they’ll have worked it out, but if Jo Rowling hasn’t finished books six and seven within the next two years, the kids we’ve got at the moment will be too old to play the parts. And they may not even want to. So it depends on the variables. In some ways I would rather get on with something else, but I don’t want to say that because it sounds so f**king ungrateful.”

He pauses, and cocks his head like an owl listening for a mouse in a cornfield. He has heard a motorbike zoom past outside and is enjoying the sound of the engine.

“So, no, I don’t know if I’m going to do any more,” he continues. “They will, of course, to enchant me back, offer me frightening amounts of money.”

On Ocean's Twelve...

He waxes lyrical about hanging out in Amsterdam with George Clooney, Brad Pitt et al, and gets quite flustered when talking about Catherine Zeta Jones’s pencil skirt.

In Ocean’s 12, he plays a “crime guru” called Matsui, who tests Matt Damon’s character to see whether he is ready for more responsibility. “The next day, the producer Jerry Weintraub said to me, ‘I’ve seen the scene. It’s very, very, very funny, Robbie. I’m gonna give you a treat. What do you wanna do on your day off?’ I said, ‘Well, I suppose I could go and shag a lot of women dressed in leather.’ He says, ‘That’s a possibility.’ ‘Or,’ I said, ‘I’ve always wanted to go round Amsterdam, on all the wee canals you never see, on an old boat.’ He said, ‘That will happen.’ So the next day, nine o’clock in the morning, a 1917 motor launch turns up. I step out of the hotel on to the boat and spend two hours going round all these tiny canals. Did you know that Amsterdam is mainly below sea level? I was astonished. These f**king great barricades hold the sea back."