Romance rocks wizard world in new Potter movie

"I'd like to continue acting, really, if I can," said Rupert Grint, who plays Ron.

"It's kind of all coming to an end now and I suppose you've got to start thinking about that kind of thing."

Daniel Radcliffe, who plays Harry and has starred on the Broadway stage, also plans to go on acting.

"Hopefully just keep acting is the plan. I just want to keep going for as long as I can and I've had a fantastic time with Potter. I will be very sad to leave it."

Watson is going to university in the United States.

"I'm very excited and looking forward to a bit of normality for a while, it would be nice," she said. "But that by no means means that by going to university I'm never going to act again."