Netflix and Barack and Michelle Obama’s production company have announced their latest film: “Becoming,” a documentary that follows Michelle as she goes on tour to promote her bestselling memoir of the same name. Although the documentary was directed by Nadia Hallgren, it sounds like the film had extensive access to and input from Michelle Obama . After all, it was produced by Higher Ground Productions, the company the Obamas formed to create content for Netflix, Spotify and others. And the announcement comes with a letter from Obama, in which she says this wasn’t just a standard book tour: “In groups...