What happens when a camera cannot see your face? Coded Bias, Shalini Kantayya's 2020 documentary, starts with that question in a university lab and follows it all the way to the halls of government.
What is Coded Bias about?
The film opens with Joy Buolamwini, a researcher at the MIT Media Lab, testing facial recognition software and finding that it fails to register darker-skinned faces reliably. That discovery becomes the spine of the documentary. Over eighty-six minutes, the film widens from one experiment to a broader examination of how automated systems are built, who builds them, and what happens to the people on the receiving end of a decision no human made. Along the way it visits places where algorithms already shape daily life, from policing and housing to hiring and credit, and it follows Buolamwini as she moves from publishing findings to pressing for the first legislation in the United States aimed at algorithmic bias. The structure alternates between personal testimony, expert interviews and scenes of advocacy, so the technical material is always anchored to a person and a consequence.
About the cast
Besides Buolamwini, the documentary features a roster of writers and researchers who have shaped the public conversation on data and power: Cathy O'Neil, Meredith Broussard, Silkie Carlo, Virginia Eubanks, Ravi Naik, Safiya Umoja Noble and Zeynep Tufekci. Each appears as themselves, speaking from their own area of work, and the film gives them room to explain rather than simply react. Director Shalini Kantayya shaped these contributions into a single argument without relying on a narrator.
Context & significance
Coded Bias is a 2020 documentary and a co-production spanning China, the United Kingdom and the United States, a geographic spread that reflects how widely facial recognition had already been deployed by the time the film was made. It runs about eighty-six minutes and sits squarely in the Documentary genre. The film arrived at a moment when questions about surveillance, data collection and automated decision-making were moving from academic journals into public debate, and it is often cited as an accessible entry point to those questions for viewers without a technical background. For Persian-speaking audiences, the subject has a particular resonance: diaspora communities frequently deal with identity checks, border systems and automated screening, and the film's central point, that a system trained on a narrow set of faces will misread everyone outside that set, applies well beyond the American cases it documents. Ktime presents the film as a factual record of a research finding and a policy campaign; the arguments on screen belong to the participants, and viewers are left to weigh them.
Watching Coded Bias on Ktime
Coded Bias can be watched on Ktime after logging in with a free account; reading this page requires no login. The documentary is available in its original English audio, and no Persian dub or subtitle track is listed for this title. Ktime's interface works fully in Farsi, so members of the Iranian diaspora can search for the film, save it and continue watching from any device in Persian.