Daniel Radcliffe: I Was Drunk While Filming 'Harry Potter' Scenes

The actor, who has admitted to battling alcohol addiction, reveals that he showed up to the movie set under the influence

How embarrassing for Voldemort -- it turns out the vilest villain in the world wasn't just defeated by a boy wizard, but a boy wizard who'd had a few too many Firewhiskeys.

Daniel Radcliffe -- who admitted last July that he battled alcohol addiction for a couple of years before kicking booze in 2010 -- tells the British celebrity magazine Heat that he was definitely drunk during the filming of some scenes in the Harry Potter films. But don't go comparing Dan to Charlie Sheen just yet. The 22-year-old actor insists he never imbibed on the set; he just turned up still buzzing from the previous night.

"I can honestly say I never drank at work on Harry Potter. I went into work still drunk, but I never drank at work," he tells the magazine. "I can point to many scenes where I'm just gone. Dead behind the eyes."

So how is it that no one ever caught on to the fact that young Potter's Butterbeer wasn't of the non-alcoholic variety?

"People with problems like that are very adept at hiding it," Radcliffe explains. "It was bad. I don't want to go into details but I drank a lot and it was daily -- I mean nightly."

Radcliffe, who previously referred to himself as a "very unsuccessful drinker," has since kicked the booze, and feels better for it.

"I loved the fact I suddenly could talk to people and feel so entertaining and so interesting," he tells Heat. "But after a while, you're living under such a cloud of shame about what you've done and the dread of who you might see, what you might have said to them, what you might have done with them. You either have to change something or give into that shame and I wasn't prepared to do that at 21."

Another thing Radcliffe isn't prepared to do is abuse his fame. The actor, who recently completed an acclaimed Broadway run in How to Succeed in Business without Really Trying and currently stars in the eerie thriller The Woman in Black, says he's never done "the groupie thing" (a fact that surely pleases his current girlfriend Rosie Coker).

"I like to like somebody before I sleep with them, I really do," he insists. "You know you're going to have to talk to them afterwards, even if it is a one-night stand. I have… I mean that has happened, but generally speaking I've known the person. Someone once said to me, 'You can go outside and pick from the girls at the stage door.' And I said, 'No, that's not me.' Because, to do that, you kind of have to be a dick."

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