Revealing mistake: During the fight scene in the gymnasium, Max is a blatant stunt double in some shots.
Revealing mistake: When Max writes down the code and hands it to Hercules, the paper is blank the entire time.
When Good Fellows Get Together - S3-E8
Revealing mistake: In the final scene when Hymie is fighting Groppo, Hymie is a blatant stunt double in several shots, evidenced by the different shaped head of the double.
That Old Gang of Mine - S3-E10
Revealing mistake: When Max is scaling the wall into the palace, in one shot he is a visible stunt double.
Revealing mistake: When Max, the Chief and 99 are going through the wreckage, Max picks up solid wood that's obviously polystyrene.
Revealing mistake: The lift for going in and out of the KAOS base is meant to be sturdy metal, but it wobbles like a prop when the KAOS agent drives off it.
Maxwell Smart, Private Eye - S3-E5
Revealing mistake: When Max and Trinka jump into the taxi at the start, the cab is in park position for the entire chase scene.
Revealing mistake: Vogel gives the address of Mrs Farris to Smart, but in the close-up shot, the paper has no ink on it. It's blank.
Viva Smart - S3-E2
Revealing mistake: Several times during the prison escape scene, the stone wall visibly wobbles.
Viva Smart - S3-E2
Revealing mistake: When Max is cutting through the wall with his laser pen, the wall is obviously pre-cut. You can see the joins.
Revealing mistake: In one shot of the graveyard fight, Max is about to hit Mondebello, but when Max is bringing the shovel towards the camera, he visibly slows it down so it doesn't hit the camera.