Directed by Kate Davis, Traffic Stop tells the story of King’s violent arrest after she was stopped for a routine traffic violation in June of 2015. The incident, which occured in Austin, Texas where King works as a school teacher, made national news at the time. Within weeks, she was contacted by the creators of Traffic Stop about making her story the focus of a documentary.

Caught on police dashcams, King was pulled from her car by the arresting officer, repeatedly thrown to the ground and handcuffed. En route to jail in a squad car, she engaged in a revealing conversation with her escorting officer about race and law enforcement in America. The documentary juxtaposes dashcam footage with scenes from King’s everyday life, offering a fuller portrait of the woman caught up in this unsettling encounter.

“I still don’t believe it,” King told the Austin American-Statesman before she left for California to attend the award show. “So I’m kind of like, meh, I’m going to the Oscars. But I definitely feel like I accomplished my goal.”

Traffic Stop is currently showing on HBO. Watch a trailer below.