Mr. Monk and the Class Reunion - S5-E6
Continuity mistake: Just after the touch football game with Kyle, Monk tells Natalie, "He missed that ball on purpose. He dropped his hands." But Kyle didn't drop them: he kept his hands up and deliberately missed the ball. Monk, who always notices every tiny detail, wouldn't make such a mistake. (00:32:20)
Mr. Monk and the Class Reunion - S5-E6
Continuity mistake: At the start of the episode, when Katherine Rutherford is killed, she lands on her stomach with her eyes wide-open. Yet when Stottlemeyer and Disher arrive and see the cops looking at the body, she is now lying face-up and her eyes are closed. It is hard to believe that the police would move the body that much without first marking its original position with tape.
Suggested correction: It's a TV and movie trope that cops outline a body with tape or chalk, that's what photographs are for. But if someone found an old lady lying on her stomach, especially without blood, they might roll her over to check if she's OK or could be resuscitated.
Mr. Monk and the Class Reunion - S5-E6
Continuity mistake: In the opening scene, when the woman comes out of the room, you can see the rug in the hallway. But in the next shot, there's two plastic runners over the rug. It alternates from being there to not depending on the camera angle.
Mr. Monk and the Class Reunion - S5-E6
Continuity mistake: During the touch football game, when Natalie first throws the ball to Monk, he catches it and a guy in a blue T-shirt and jeans is running up behind him. Angle switches as Monk twists out of the way, and it's a different guy wearing black shorts instead. A few cuts later and Monk runs past the same guy in black shorts again.
Mr. Monk and the Class Reunion - S5-E6
Continuity mistake: When Natalie is noticing Monk's nickname on his registration form, you can see a female extra with black hair, a gray outfit and a purse on her left shoulder walk past Natalie on the left side of the screen. Twenty seconds later, as Natalie is turning and preparing to walk away, the exact same female extra walks past her again, again going in the same direction. Also, in the same shot, you see a male extra with a satchel over his shoulder walk past the camera as Natalie is pulling the form from her purse, and he briefly and instantly reappears walking past Natalie again at the point where she grins and says, "I don't know!" for the second time. (00:05:25 - 00:06:10)