The first revisions of "Night of the Living Dead" involved colorization by home video distributors. Hal Roach Studios released a colorized version in 1986 that featured ghouls with pale green skin. Another colorized version appeared in 1997 from Anchor Bay Entertainment with grey-skinned zombies. In 2004, Legend Films produced a new colorized version, which was released on DVD by 20th Century Fox Home Entertainment. Technology critic Gary W. Tooze wrote that "The colorization is damn impressive", but noticed the print used was not as sharp as other releases of the film. In 2009, Legend Films coproduced a colorized 3D version of the film with PassmoreLab, a company that converts 2-D film into 3-D format. The film was theatrically released on October 14, 2010. According to Legend Films founder Barry Sandrew, "Night of the Living Dead" is the first entirely live action 2-D film to be converted to 3-D.