Other mistake: In the opening titles, Irven Spence's first name is incorrectly credited as Irvin.
Continuity mistake: During the slow-motion sequence, Speedy slams the mallet on the cat's paw and leaves the mallet on the ground when he rescues the mouse. When he puts a stick of dynamite on the cat's tongue, the mallet has gone.
Continuity mistake: When the camera pans to the goose after Porky demands to know who laid the golden egg, the background behind the goose changes between shots.
Continuity mistake: When the announcer tells Droopy and the wolf about the prize they can have if they win the bullfight, there is a red wall behind the announcer that keeps disappearing and re-appearing between shots.
Audio problem: During the dream sequence in the song, Lulu begins swinging from three different stars depicting 3 different faces of celebrities at the time in black and white that have their lips moving with the song as they sing. However their lips are off sync with the lyrics by a little bit and are moving slower. (00:04:25)
Continuity mistake: When Tom traps Jerry in the blinds, he pulls the cord and squashes Jerry. At this point, you can see Tom is holding the cord, but when we Jerry sliding down the blinds in the next shot, Tom is no longer holding the cord.
Audio problem: When the lion walks on stage, the audience becomes completely quiet and all that can be heard is the sound of the lion's voice. Behind him is only a curtain that hides the orchestra from view. Once he finishes speaking, he turns around and the curtain opens, and suddenly you can hear the orchestra doing sound checks on their instruments and it is loud, the lion tapping his podium to quieten them so they know the concert is about to start. This means merely a curtain was keeping their sound check from being heard at all until it was open? (00:02:25)
Continuity mistake: When Daffy enters Bugs' living room wearing a rabbit costume, you can see the door is plain green. But when Elmer Fudd enters to confront Daffy, the door is now divided into three sections.
Continuity mistake: When Sylvester runs into the Broken Arms Apartment Building, you can see the front door of the entrance has nothing on it, but when Sylvester is being attacked by the guard in the next shot, there are metal bars on the door.
Continuity mistake: When the inebriated cuckoo pops out of the cuckoo clock at the beginning of the short, his feet are yellow, but when we see a close-up of the cuckoo in the next shot, his feet are now orange.
Plot hole: When we first see the reanimated Sparky, his head's sewed on. While that makes him look a bit like the traditional Frankenstein monster, it doesn't make a lot of sense - the original monster had stitches on its neck because it was made from multiple body parts, but it's not like they sawed the dog's head off after it died...
Suggested correction: Do we ever see how much damage the car did?
Factual error: The movie takes place in 1987, but during the museum visit the main character is watching video from the Tiananmen Square uprising, which didn't occur until 1989. (00:52:40)
Continuity mistake: Madame Blueberry's hair changes from brown to blonde throughout the film.
Suggested correction: Her hairstyle and hat change. She bought a wig and a new hat while at StuffMart, and continues wearing them until the final scene, where she is back to being herself.
Continuity mistake: When we see Nasty Canasta's drink, you can see there are holes on the counter next to the glass when the bartender puts two ice cubes in it. When Daffy Duck dares Nasty Canasta to drink it, the holes have disappeared.
Continuity mistake: After Tom is sobered up by water, you can see behind him there is a bottle of seltzer in the refrigerator, but when Jerry comes along with a chicken drumstick in the next shot, the bottle has disappeared.
Continuity mistake: As Charlie Brown, Patty, and Marcie are talking, the grandfather clock strikes four. Trouble is the pendulum is stuck in place, first on one side, then the other. It doesn't swing.
Continuity mistake: When Bosko is sitting in the trench, he spots a piece of cheese on a mousetrap and eats it. In the next shot, the mousetrap has disappeared.
Continuity mistake: Upon seeing Donald Duck's footprints in the sand, Chip walks the length of one footprint, leaving eight of his own footprints as he goes. He fetches Dale to show him Donald's footprints but when Chip reaches the footprint he walked across, his own footprints have vanished.
Revealing mistake: When Tom is punctured in the rear by the fork that Nibbles is holding, his tail is missing.
Continuity mistake: When Jeannie is on the settee talking on the telephone, the cord is missing in some shots.