Continuity mistake: In the climactic chase scene, when Murphy is shot through the window, he is shot in his right arm and there is a hole in the window with blood on it. When he does a 360 degree loop in the helicopter the broken window and blood appears on his left sidethe opposite window to that which he was shot through. (01:42:20)
Continuity mistake: As the Chevrolet Vega arrives at the TV studio, the roof is shown to have sustained significant damage, as if something huge has fallen on it. The right headlamp area is also smashed and the light gone. But at no time in the chase does anything occur to cause any of this damage. (01:27:50)
Continuity mistake: In the scene on the bridge when Frank's girlfriend gets pulled over, the cop on the driver side has his gun drawn. It changes between angles. From the outside it's a standard issue 38. From the inside looking out it's a .357 magnum.
Continuity mistake: When Lymangood is running away from the car he crashes in to a bike and his hands and arms are free, not tied at all.