It appears that the rumors were true: a 3D film based on Metallica is indeed in the works. Consequence of Sound points to the metal band's official website, which features a brief message of "3D Movie rumors are true!" That's about it, though, and everything else surrounding the film is merely speculative. This includes an unconfirmed announcement that the movie will be produced by Charlotte Huggins; she produced another 3D flick in Journey to the Center of the Earth. We'll keep you updated on this story as it is, at least, sure to be entertaining.