Sam Green is an American documentary filmmaker. His most recent projects are “live documentaries” in which he narrates a film in-person while musicians perform a live soundtrack. His 2018 project A Thousand Thoughts features a live score by the Kronos Quartet, and his 2012 project The Love Song of R. Buckminster Fuller featured a live score by the band Yo La Tengo. Green's 2004 film The Weather Underground was nominated for an Academy Award, included in the Whitney Biennial, and broadcast nationally on PBS.[1]