Thunder Van - S2-E1
Other mistake: The Thunder Van is claimed to be soundproof, but when Hank finished pranking the kids, Phoebe could be heard talking to Barb from inside it.
Revealing mistake: When the whip is sparking, no black marks are left on the floor.
Continuity mistake: When Max leaves with his ten-foot pole he knocks a lamp off a table and breaks it. When he returns the lamp disappears from the floor.
Revealing mistake: When Max is strapped to the armchair it becomes obvious on at least three occasions throughout the scene that the strap is not secure and he can escape the chair by pressing down into the fabric, but chooses not to.
The Girl with the Dragon Snafu - S2-E23
Continuity mistake: When Hank gets frustrated, he pulls the doorknob off the new bathroom. When he is standing on the rug, we can see that the doorknob is back on the door.
Other mistake: Even though Max nor Phoebe control the whip, just the fact they are "supes" should have allowed them to control it.
Audio problem: Every time Barb is seen playing the guitar, the finger movements and the music we hear don't match.
