Don't Think I've Forgotten: Cambodia's Lost Rock and Roll (2014)

The Phnom Penh detour, and the most moving film here. John Pirozzi tells Cambodia's history through the stars of its 1950s, '60s and '70s pop scene, such as Sinn Sisamouth and Ros Serey Sothea, whose music grew out of the rock and soul that young Cambodians sought out from the West, and through what happened when the Khmer Rouge took power. The surviving music and footage are a joy; the story they carry is heavy, so save it for a night when you can give it full attention. Free with ads on Tubi, Pluto TV and YouTube's free movies, and free with a library card on Kanopy.