Continuity mistake: While Rockford convinces Rocky to temporarily stay at LJ's, Angel fixes himself a sandwich then lifts the plate with his left hand and grabs the beer with his right hand, but next shot the items have switched hands in midair. (00:41:50)
Visible crew/equipment: After Angel lies to Jim about bunking over at Aaron's he leaves Rocky's house, and when Angel shows up at Gaedel's apartment, the moving boom mic is visible in the hallway under the head jamb, and there's a small white tape mark on the carpet between Angel's feet. (00:40:00)
Visible crew/equipment: When Rockford shows up at the hotel suite expecting a "secret witness" Lt. Chapman tells him Angel's in bed, and as Rockford walks toward the bedroom, the actor's black tape mark is visible on the carpet where Chapman had been standing. (00:08:40)
Visible crew/equipment: After Angel dives into Firebird through the open window, Rockford ends up chasing after Kane with sirens following, and when Rockford pulls over at the side of a road, we can see the reflection of the crew and filming equipment positioned beside the car. (00:33:55)
Visible crew/equipment: When Rockford leaves the motel room he gets into his car, backs up and beeps, then as Angel dives into the car through the open window, we can see the reflection of crew, camera, boom mic, boom operator on the surface of the Firebird. (00:32:40)