Daniel Radcliffe has been sober since 2010, but in a shocking new tell-all it turns out the Broadway star relapsed during "The Cripple of Inishmaan." Entertainment reporter Randy Jernigan spoke with 19 of Radcliffe's friends to pen "The Life and Career of Danielle Radcliffe" which hits shelves in July.

"He had to learn a very deep Irish brogue and put so much time into rehearsals. He relapsed because he went back to his old ways of thinking," Jernigan told Radar Online of Radcliffe's relapse to alcoholism. "He felt like he wasn't good enough."

The "Harry Potter" star spoke openly about his struggle with alcohol in the past.

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

He later reiterated these thoughts to Shortlist magazine.

"I was living in constant fear of who I'd meet, what I might have said to them, what I might have done with them, so I'd stay in my apartment for days and drink alone," he explained. "I was a recluse at 20. It was pathetic - it wasn't me. I'm a fun, polite person and it turned me into a rude bore."

He continued, "For a long time people were saying to me 'we think you have a problem' but in the end I had to come to the realization myself."

Jernigan also revealed the extent of Radcliffe's dyspraxia, a developmental coordination disorder.

"He would go into episodes where he couldn't do anything, even tie his shoes," Jernigan told the site. "They had to stop production more than a few times."

"Daniel felt [the disorder] held him back in a lot of ways," he added. "He didn't feel like a normal kid. He felt lost."

Will you read the new tell-all of Radcliffe? Let us know why or why not below.