In the horror film, The Exorcist, the scene where Regan projectile vomits at Father Karras only required one take. The vomit was intended to hit him on the chest. Instead, the plastic tubing that sprayed the vomit accidentally misfired, hitting him in the face. The look of shock and disgust while wiping away the vomit is genuine. Actor Jason Miller, (Father Karras), admitted in an interview that he was very angered by this mistake.