The last narrative film distributed by Netflix that was based on real events, The Red Sea Diving Resort, was a mess of clichés with a bad case of white-savior complex. Sergio, the streaming giant’s latest stab at tackling history, fares a little better. Greg Barker, a filmmaker known for his documentaries Ghosts of Rwanda and Manhunt: The Search for Bin Laden, turns his eye to feature storytelling with a biographical drama about United Nations diplomat Sérgio Vieira de Mello, based on Barker’s documentary of the same name. Vieira de Mello was a storied diplomat, assisting in hostage situations, helping usher formerly occupied countries to independence, and coordinating humanitarian operations through his career, and Barker’s obvious care and respect for his subject makes Sergio stirring to watch. But as Craig Borten’s script leans more and more on romance, the film flounders.