The Thin Blue Line
- Ano: 1988
- País: United States of America
- Xénero: Crime, Documentary
- Estudo: American Playhouse, Third Floor Productions
- Palabra clave: death penalty, texas, investigation, dallas texas, trial, murder, police officer, miscarriage of justice
- Director: Errol Morris
- Reparto: Randall Adams, David Harris, Gus Rose, Jackie Johnson, Marshall Touchton, Dale Holt