Emily Kunstler and Sarah Kunstler grew up in Manhattan's Greenwich Village and attended the Little Red School House. In 2000, they founded Off Center Media, a company that produces documentaries focusing on injustice in the criminal-justice system.
The Kunstler sisters have produced, directed and edited a number of short documentaries, including Tulia, Texas: Scenes from the Drug War (2002), which won Best Documentary Short at the Woodstock Film Festival and helped exonerate 46 wrongfully convicted people, and Getting Through to the President (2004), which aired on the Sundance Channel. Other Off Center Media credits include A Pattern of Exclusion: The Trial of Thomas Miller-El (2002), The Norfolk Four: A Miscarriage Of Justice (2006) and Executing the Insane: The Case of Scott Panetti (2007). William Kunstler: Disturbing the Universe is their first documentary feature.