When the camera cuts away from Fishbine and Taylor after saying "They are burning our company!" the camera cuts away to Murdoch at the window. You can clearly see two bullet holes, but he fired three shots through the window before this.
In several wide shots of the F&B Station during the climax, the windows go from three bullet holes to windows free of damage.
In the final shootout scene where Larry Hagman's character has been shot, the SWAT team arrives and in the background you can see SWAT team guys climbing a ladder to a roof across the street. In the next scene, from the same angle, you see the Swat team bring in and hoisting the ladder.
As Murdoch and the other orderly are trying to bring the big woman down the stairs in the stretcher, you can see the pull wire attached underneath it.
When "Mother" injects the "hangover cure" into the massage parlor girl, you can see him flip the syringe around as he hits her behind.
When Helen, the lady rolling down the stairs on the gurney, crashes into the car, the hood pops open before she hits the car.
At several places in the film, the actor's lip movements do not match the audio, revealing that the dialogue was toned down. During Tony's job interview, Fishbein is heard saying "all-day heat on" but his lip movements are "hard-on." Later, when discussing Murdoch, Jugs is heard saying "a $100 bill sticking out of his ear" but her lips clearly say "out of his ass."
When Leroy is shot, a wire is visible that pulls him back toward the bushes.
When the cops brake fast while chasing Jugs, you can see the shadows of the camera crew on the road.
When Murdoch shoots at the cop, the explosive (squib) is seen in dark red on the siren before it is shot.
When Speed and Jugs are trying to outsmart the two cops chasing them, you can see the reflection of the mic as Jugs leads Speed to the back of the Ambulance.