Continuity mistake: When Marchello is on a rooftop restaurant before opening time he is trying to type something as a journalist but he keeps getting distracted, so he asks the girl who works there to turn the jukebox off, which she does by pulling something from behind it, like the power cord. When he asks to have it turned back on, the girl just presses something simple in the front, instead of at the back, which she should have done.
Continuity mistake: When Palfrey is being shown the Austin Healey, the salesman lets him in on the passenger side and he slides across to the driver's seat. In the next shot the salesman is standing on the driver's side.
Continuity mistake: When Dr Jekyll enters his laboratory at the start of the cartoon, he locks the door with his key. After drinking the Hyde Formula, he turns into Mr Hyde for a short time before going back to Dr Jekyll. When Jekyll leaves the laboratory, he opens the door without unlocking it.
Continuity mistake: The first time you see "No Sale" written in lipstick on a big mirror by Elizabeth Taylor, the "o" in "No" is partially formed. The next time you see the mirror, the letter "o" has been filled in and completed.
Continuity mistake: When the boiler explodes, Robert Stack runs into his daughter's bedroom, looks down the big hole and the cabin below has nobody in it. He tries to save his daughter and the camera angle shows someone lying on the floor next to the hole. Looks down for the third time, and the person lying on the floor is gone again.
Continuity mistake: To revive Fran, Dr. Dreyfuss slaps her repeatedly and breaks capsules for her to smell. One of the capsules is on the armrest of the chair, and it is positioned and tilted differently each time a cut intervened with Jack Lemmon going to the windows and back. (01:09:00)
Continuity mistake: When Sam runs into the closet after Bugs asks him for some olives, he opens the door and you can see the back of the door is completely clear, but when we see Sam ranting and raving, panels have appeared.
Continuity mistake: When we first see Wile E. Coyote at the beginning of the short, he places his picnic bag on a footprint before introducing himself. But after Wile E. Says "I am a genius, by trade", we cut to the picnic bag and it is now next to his foot.
Continuity mistake: When Yosemite Sam sends out robot ZX29B to capture Bugs Bunny, the robot hides by some dustbins by the dump and you can see there are two dustbins by him. When Bugs empties his rubbish into the robot, the two dustbins have disappeared, and when robot ZX29B coughs up the rubbish in the next shot, they are back again.