We all know that our smartphones track us, but do we really know to what extent? Ronan Farrow does. After becoming the target of cyber-surveillance while reporting on Harvey Weinstein, the Pulitzer Prize–winning journalist—and son of Mia Farrow and Woody Allen—took matters into his own hands. He began investigating the billion-dollar commercial-spyware industry, traveling to Tel Aviv, Barcelona, and New York to understand how our phones are monitored. Turns out, it’s worse than we thought. In Surveilled, Farrow uncovers how companies such as NSO Group operate with minimal oversight, selling spyware capable of hacking and controlling the devices of 450 million people (think activists, reporters, and politicians) without their knowledge. Directed by Perri Peltz and Matthew O’Neill, the documentary unveils the secrets, dangers, and staggering scale of the covert world behind our screens. —Jeanne Malle