Long-standing metal band Metallica (featuring members James Hetfield, Lars Ulrich, Kirk Hammett, and Robert Trujillo) is moving forward on a 3D feature film with Journey to the Center of the Earth and Journey 2: The Mysterious Island producer Charlotte Huggins.

It is not known what type of feature film the band is planning. It could be anything from a Tommy-inspired rock opera, to a drama, to a documentary, to a 3D concert film, which has become a popular genre amongst best selling musicians. Anything is fair game at this point.

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Metallica first ventured into the world of filmmaking by generously contributing most of the music to the West Memphis Three documentary Paradise Lost: The Child Murders at Robin Hood Hills, which helped the film find its audience, and got word out about the infamous murder trial. Then, in 2004, the band put its own personal drama in front of cameras for the groundbreaking documentary Metallica: Some Kind of Monster.

Its doubtful that Metallica would be engaging in a follow-up to their own woes and strife as a struggling multi-million dollar outfit. No one wants to see Dave Mustaine cry in 3D.

For now, we will just have to wait and see what the band is cooking up. The sky seems to be the limit.