I am not surprised that Johnny Depp is making a documentary about Keith Richards, the famed, or infamous, Rolling Stone guitarist.  According to Entertainment Weekly, everybody knows Johnny Depp is a big fan of Keith Richards and that he based his Pirates of the Caribbean character Captain Jack Sparrow on the legendary Rolling Stones guitarist. But did you know he is also a keen admirer of non-fiction films? “I’m a psychotic for documentaries,” says the actor. “I adore them, you know.”

Mr. Depp has over 35 hours of footage for his documentary. “It’s coming along great,” says the actor of his second directing gig, after 1997’s drama, The Brave. “Any time that he’s got a minute, any time I’ve got a minute. We’ve done one, let’s say, installment that was fairly intense.

In addition to the interview footage, the as-yet untitled film will also contain performance material featuring Richards, members of his band, the X-Pensive Winos, and famous guests. “We had Patti Smith, which was miraculous, we had Norah Jones, and I think there’s going to be a few more,” says Depp, “I think we’ve probably got two more installments [to film] and then we’ll start cutting it together.”

The documentary will be the third movie collaboration between Depp and Richards. The pair both appeared in 2007?s Pirates of the Caribbean: At World’s End and will reunite in the forthcoming Pirates of the Caribbean: On Stranger Tides. “It was perfection!” says Depp of working with Richards on the latter project, which is due out May 20, 2011.

For more about On Stranger Tides, and all the rest of the stuff you’ll be watching, hearing, and reading in 2011, pick up the new 2011 Preview! issue of Entertainment Weekly, which is on the streets now.

Photo credit: Eric Charbonneau/WireImage.com