Factual error: After mounting armor in the bus they are approaching Phoenix on a two lane highway from the northwest. When entering the city they are shown coming around South Mountain on Interstate 10 from Tucson from the south.
Continuity mistake: When Shockley first pulls up to Police Headquarters, a bottle of Jack Daniels falls out of the car and is seen with the label facing down. The camera angle changes and the label is now seen face up.
Continuity mistake: After leaving Blakelock's office, Shockley tells Josephson about going to Las Vegas and then thanks him for the escort. Josephson replies by calling him Jim. Shockley's first name is Ben.
Continuity mistake: Ben, with the help of maybe one man, builds a crude but not easily made steel plated enclosure around the driver's compartment in about an hour. There is no way he could have done all that with one man and one blowtorch in an hour.
Continuity mistake: When Shockley and Mally arrive at the courthouse, they get off the bus and all the policeman around them are seen without any hats or helmets. The camera angle changes and you now see a number of policeman in helmets.
Continuity mistake: When the helicopter is chasing Ben and Gus on the motorcycle, the sun changes position. At one point, looking at the bike from inside the helicopter, the bike's shadow is behind and to their right, in the next shot the shadow is longer and to their left.
Continuity mistake: When Ben, Gus and the hijacked cop stop at gas station to use pay phone, the vehicle next to the phone is a Toyota Land Cruiser. Seconds later in the phone booth, the vehicle is a Suburban.