“I very much doubt a series of films like this will ever be produced again, and, yes, this is the end of Harry Potter, unless JK Rowling starts writing again, and I would love to return to the part,” he said.

“It’s also been a great stepping stone and a wonderful chance to work with the cream of British film and stage. It has been a truly inspirational cast, and, for us, being so young when we started out on the first film, we’ve learnt so much from these legendary actors and actresses as well as producers and directors,” he added.

“I guess it’s a mixed emotion now it’s all over. On the one hand it was a wonderful experience and great fun, but on the other it is kind of sad,” he said.

He has not seen the final Potter films yet, but he knows they are going to be the best. “The whole production company (which includes his girlfriend Jade, who is the assistant stunt coordinator) and cast really wanted to end the series on a major high, and, obviously, they are both more adult than the previous ones as they have had to grow with the characters.

“But I know the director David Yates, who’s directed these last four, put everything he could into [them], his heart and soul – we all did, I guess. They are both more violent and darker than the others; there are more battles and, of course, deaths.

“We’re nearing the end, so it’s all going to be very exciting, and we all wanted these two last chapters, in particular the final, to be the piece de resistance, and, from what I have seen, Potter fans and movie-goers in general are in for a real treat,” he said.

“But I can’t give too much away,” he added.

The Apparition, which is described as a sci-fi/horror/thriller, which was shot on location, in Berlin, mostly, and then Los Angeles. “It’s based on a true story, actually. It is inspired about a supernatural attendance unleashed by a college experiment called the Phillips Experiment,” he explained.

“I play the scientist responsible for unleashing the apparition, which does not quite turn out as we expected, and then have to try and contain it some two years later.”

“It’s got a great script and cast: John Lithgow, Frieda Pinto (Slumdog Millionaire), James Franco, Andy Serkis (Lord of the Rings), and the larger than life Brian Cox, and I’m really excited about getting on set,” he said yesterday.