@yahooentertainment: Before you watch the 2-hour, 54-minute “You Can See Everything,” watch this 46-second video. ⠀ Nathan Fielder and Lance Oppenheim’s Elizabeth Holmes documentary has been generating buzz since its surprise premiere at the Telluride Film Festival in September. ⠀ The Theranos founder opened her home to the filmmakers for her final 34 days before reporting to prison for investor fraud. Fielder even stayed in the guest house. ⠀ From the people behind the cameras to the blood-testing scandal and the unusually close access, here’s what to know before watching.