Continuity mistake: When Rockford decks Travis with a punch, the shadow he projects on the door and wall is much shorter in the wider angle compared to the close-up. (00:11:20)
Revealing mistake: Rockford checks out of the publication featuring the bulletin article about the Greens headed for the Greek Islands. The camera lingers on it, and you can read it's all filler gibberish about investigations and such. (00:17:35)
Audio problem: Jim has been beaten up in front of the Sierra and dragged back into his own car. When they drag him out inside of some warehouse, he says "Take it easy! I'm not struggling, am I?", but James Garner's lips are not moving and the line is obviously dubbed in. (00:24:30)
Continuity mistake: At the bar after the beating and police report, Rockford approaches Tawnia who is having a drink with a gent. At the cut, the guy's chewing the cigar and Tawnia's hand with the drink is lower than earlier. (00:31:45)
Continuity mistake: In its close-up, the mushy pink drink has the two straws fairly close together, well separated and divergent in the side views. (00:32:00)
Continuity mistake: When Rockford and Tawnia are at the drive-in restaurant having burgers, the window tray clips are either yellow or red depending on the angle of the shot. (00:34:40)
Continuity mistake: At the drive-in, Rockford in close-up chews into the burger holding it with both hands, but in the previous shot he was using one hand to keep the plate underneath it. In fact, his plate went on the tray outside the car. (00:34:55)
Continuity mistake: Rockford tries the cigarette trick once more but the big guy knocks him down with a punch. He then searches him; his hands are on opposite corners of the wallet in close-up, on different ones in the following shot. (00:38:00)
Revealing mistake: During the car chase in the golf course, Rockford gets ahead of Muzzy Vinette and has to turn the car to block his path. You can see in the grass, in that precise spot, different marks from previous takes of the scene. Obviously not a maneuver golf carts perform, and right there. (00:43:40)
Revealing mistake: When the cars run past the water sprinkler, the curve has been already marked by several tire tracks. (00:44:25)
Continuity mistake: Rockford knocks out of the bad guy with a shovel in the gut. He drops the shovel in the bunker, and the tool a couple seconds later is lying down in a different place without him touching it. (00:45:00)
Other mistake: Both Rockford's appointments are at 8 o'clock. He shows up for the one with the mysterious person; gets beaten up, dragged to a warehouse (presumably remote, from what it is shown), beaten up some more to the point of spitting out a tooth, he is then at LAPD, where everyone hates him and definitely does not prioritize his case, he makes Becker search for the warehouse's registration, which needs for him to call in favours, and he turns then up for Tawnia's appointment at 9. With all the stuff that happened, and with the typical LA traffic, it'd already be something to be a mere one hour late without all the rest in the middle of it. Even his wound is kinda healed in that short time.