 CONT: In the scene on the bridge over the L.A. river where Kate is  stopped by "Metropolitan" Police, the younger officers gun keeps  switching from a Colt Python or Diamond Head to a Smith & Wesson  Model 15. He draws a Colt as he exits the car and brandishes a Smith  & Wesson approaching the car and during the exterior shots of Kates  car. A Colt is seen from an interior shot of the driver side window  which alternates with the Smith & Wesson exterior shots. A final  exterior shot show a Colt as "Blue Thunder" hovers from the bottom  of the bridge.