Continuity: When Lois hangs up on Francis before saying "Oh, I love you," it seems as though the line is already disconnected (as can be heard from the dial tone from Francis' side), but in a later shot, Malcolm and Reese are just about to hang up the phone.

Continuity: In the opening, we see Dewey's cold feet. Two shots later, his legs are in a different position.

Revealing: At the start, when Lois tells Hal to raise his arms so she can shave his armpits, if you look at the bottom of the screen you can briefly see that Hal is wearing something to cover up his privates.

Visible crew/equipment: When Malcolm is talking to his first teacher, you can just about see a small part of a microphone at the top of the screen.

Continuity: At the end of the scene where Malcolm defeats Spaz, Malcolm throws some chocolate pudding on him and it is dripping off. A few seconds later in the wide shot, Spaz has no chocolate on him.

Continuity: When the "Krelborne" teacher comes to the house to tell Lois that Malcolm is gifted, Lois comes to the door naked and puts her arm up on the doorway. On the shot from behind she has her hand low (about where her waist is) from the shot from the front she has her hand up high (above her head).

Continuity: During the fight between Malcolm and Spath, Spath goes at Malcolm with his right fist, but the closeup of his hand going towards Malcolm and Stevie is his left hand.

Visible crew/equipment: In the scene where Stevie is in Malcolm's room. When Stevie is talking you can see the boom mike poking out at the bottom left part of the screen.

Continuity: When Malcolm is in Stevie's room eating cookies, the cookie in Malcolm's right hand disappears and reappears between shots.