Gibney, who’s behind films like “Taxi to the Dark Side,” “Enron: The Smartest Guys in the Room” and “The Inventor: Out for Blood in Silicon Valley,” is working on his latest production “Musk.” The Emmy- and Academy Award-nominated documentary filmmaker described the upcoming documentary as “a definitive and unvarnished examination of multi-billionaire tech entrepreneur Elon Musk, CEO of Tesla, SpaceX and Twitter.” There are few different productions companies working on this project as well, including Jigsaw Productions, Closer Media, Anonymous Content, and Double Agent – who are also financing the project.News of the documentary, and Musk’s displeasure with it, comes on the same day the ]Twitter CEO apologized for publicly mocking an employee with disabilities who was unsure if he’d been let go and tweeted directly to Musk after the company’s HR department stopped communicating with him.