DRONE is a documentary about the CIA's drone war, it will be shown for the first time to the public at the VUB on the 22nd of April. (event link in comments) :
Review of National Bird, a Drone Documentary – The Intercept
Drone wars: the gamers recruited to kill | Guardian Docs - YouTube
Watch Unmanned: America's Drone Wars | Prime Video
Drones, hackers and mercenaries - The future of war | DW Documentary - YouTube