In a new interview, Dan talks about the last two Harry Potter films, fans of the series and more! Â

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It's that evolution of darkness in his character that Radcliffe says has kept him excited about returning to the role, with the Half-Blood Prince now the sixth film in the planned series of eight.

It has been a maturing of a character as much as it has been of the actor and, he says, a script that has kept pace with fans' demands.

"I wouldn't be there still after eight years if I didn't love what I did and didn't want to invest a lot of myself into what I'm doing,'' he says.

"Neither would the rest of the crew who have stood by the films for eight years.''

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Here's what Dan said about the darkness and comedy in the sixth Harry Potter film, Half-Blood Prince:Â

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"I think the thing we certainly tried to do in this one was strike a balance between the darkness,'' Radcliffe says.

"I mean, the one thing when I read the script I could always yearn for was more darkness and more of that real intense stuff, because I enjoy doing that more, but hopefully this time we have struck a balance between that darkness and a certain comedy in this film.

"And what I think we've managed to do is not make it that kind of comedy that is farcical and pulling faces.Â

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"It's not that kind of comedy at all, it's much more subtle than that and hopefully people will find it funny - that's the aim anyway.''

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And about the seventh Harry Potter film:

The film version of the epic final book Harry Potter and the Deathly Hallows has been split into two films and the second instalment will be released the following year. Films he believes will grow in popularity.

"I think when the fans came on to the first film there would have been a section of the audience that didn't want to like it because they were the purists of the book,'' he says.

"There are still those people out there, but you are never going to change their minds so just don't even try.

"So I think the majority of the people out there, because the fan base has grown at about the rate the films have come out, we've managed to keep making them darker and dark enough to maintain the interests of these people.

"And I think actually through making the films darker we've gained a lot. And also through people like (director) David Yates directing them, a certain amount of respect has been gained for the films as cinema.''

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