The shot of Petersen running along the top of the dividers between the terminal's moving sidewalk at the Los Angeles International Airport got the filmmakers into trouble with the airport police. The airport had prohibited this action, mainly for Petersen's safety, as they felt that their insurance would not have covered him had he hurt himself. The actor told Friedkin that they should do the stunt anyway so the director proposed that they treat it like a rehearsal but have the cameras rolling and shoot the scene, angering airport officials.