When Joe Gavilan is reading the local newspaper and the headline says that he and KC Calden are under investigation for their conduct, two other headlines include the words "Iraqui" and "Viet Nam". An American newspaper would spell those words "Iraqi" and "Vietnam", respectively.
When K.C. shoots Wasley in the alleyway, in the first shot we see him with three bullet holes in his left arm, and quite bloody. In the following scenes, he has 1 bullet hole in his arm and less blood.
When K.C. commandeers the mini van during the chase, the girl with the white cap is on the passenger side and the boy is on the driver's side. During the chase the girl and boy switch places several times in long shots.
During the shootout in front of Graumann's, Gavilan fires two shots from his sidearm, than the bolt locks open indicating the gun is empty. The camera cuts away for a second or two and when it returns Gavilan is firing again having had no time to reload.
When Gavilan meets Cleo at the restaurant, she is the only one sitting at an outside table. In the close-ups during their conversation, they are surrounded by people, then when he leaves during the long shot, she is alone again.