A Glitch in the Matrix is a 2021 American documentary film directed by Rodney Ascher. The film had its world premiere at the Sundance Film Festival on January 31, 2021, and was released theatrically and on digital platforms on February 5, 2021, by Magnolia Pictures to generally positive reviews.

The 2021 Sundance Film Festival took place from January 28 to February 3, 2021. The first lineup of competition films was announced on December 15, 2020. Due to the COVID-19 pandemic in Utah, the festival combined in-person screenings at the Ray Theatre in Park City, with screenings held online as well as on screens and drive-ins in 24 states and territories across the United States.