HBO’s documentary “The Inventor: Out for Blood in Silicon Valley” looks at the case of Elizabeth Holmes. She created the company Theranos, which promised to revolutionize the field of blood-testing. The company swiftly rose to be valued at billions of dollars, but was exposed as a fraud. Host Thom Powers interviews director Alex Gibney and producer Erin Edeiken about the making of the film. (Source: Pure Nonfiction)