Continuity mistake: When Judge Doom cracks Greasy in the head with his cane, he lands in a stack of Acme eyeball boxes. Some of the boxes in the background change their positions and locations in alternating shots while Doom is talking about Acme's will. (01:17:10)
Continuity mistake: Check out the style of Eddie's shoes when he's flat on the floor of Droopy's elevator as it's going up. Notice how he's got a different pair on his feet minutes later while gazing down at Judge Doom's gun in the back alley. (01:11:30 - 01:14:15)
Continuity mistake: When Roger is in Eddie's apartment hiding from the Toon Patrol, a picture on the nightstand by the pull down bed changes positions on its own. (00:37:20)
Continuity mistake: In the scene where Eddie stops his Plymouth to get out and look into Toon Town's tunnel, the passenger side vent window cranks itself open between shots. (01:07:55)
Continuity mistake: Before Eddie drives his Plymouth into Toon Town, he breaks out Yosemite Sam's gun for the occasion and loads it with the animated bullets. The gun starts off in his right hand. But by the following shot when he gets ready to take a swig of Wild Turkey, it has instantly switched over to the other. (01:09:05)
Continuity mistake: While Valiant is driving through Toon Town, there's no continuity between what he sees ahead, and what is seen in the car's rear window seconds later.
Continuity mistake: After Eddie has crashed in Toon Town he gets out of his car and casts no shadow, and looks as if he's floating. Later on he does cast shadows. (01:10:45 - 01:13:30)
Continuity mistake: At the end of the film, when Delores and Valiant are about to kiss, she has her right arm down. A second later, from a new angle, it's up. (01:35:35)
Continuity mistake: When Mr. Acme is killed with a piano, there's a cop next to a briefcase taking pictures of the crime scene. A frame later the cop is 1 meter away from the briefcase. (00:29:05)
Continuity mistake: When Baby Herman's cigar falls to the floor its position changes between the first and the second angle in half a second. (00:35:35)
Continuity mistake: When Valiant and Roger are in the cab trapped in the alley, the distance to the exit of the alley keeps increasing and decreasing wildly as well as the distance to the police car in front. (00:59:00)
Continuity mistake: When the spray-machine is about to kill Roger and Jessica it smashes a brick wall with some lettering and a thick white line painted below. In the close-up the lettering and the line are gone. (01:32:25)
Continuity mistake: When Baby Herman slides through the kitchen floor towards the fridge he stops with most of his butt on a black tile. When the angle changes he is sitting on a white tile. (00:01:30)
Continuity mistake: During the alleyway chase, a trashcan on the side keeps appearing and disappearing through shots. (00:58:50)
Continuity mistake: When Eddie crashes his car in Toon Town, from the inside we see that there's nothing in front of the car, but when the angle changes we can see a huge mess around with lots of people surrounding the car. (01:10:35 - 01:13:30)
Continuity mistake: After the alleyway scene, the cab jumps on a bridge. The first angle shows that there are no cars next to the woman with the pram, but half a second later, when the angle changes, there's a grey blue car behind. (00:59:35)
Continuity mistake: When Judge Doom is melting and is just about to die, the wide angle shows he's surround by a very thick cloud of yellow smoke that keeps us from seeing his face, then in the close-up it changes to a very thin smoke that allows to see his face, and then back to the wide angle and the thick smoke again. (01:31:55)
Continuity mistake: When the weasels make their appearance at Mr. Acme's crime scene their car knocks some boxes off. From one angle they are all scattered next to the front bumper, but when the angle changes they're gone and have moved several feet to the right. (00:31:55)
Continuity mistake: Roger and Jessica are safe when the spray-machine breaks the brick wall. It then goes through the other side staying on the left side and moving far away from the debris. Angle on Valiant, and when back to the wall the machine has suddenly moved several feet to the right and is crossing the wall again.
Continuity mistake: In the scene where Valiant leaves Maroon's office, he goes outside and closes the door behind him all the way. Then a cartoon character passes him. Notice the character opens the door by pushing on it instead of turning the knob? I thought Valiant closed it all the way. (00:08:45)
Answer: Valiant also shares his name with Arthurian comic strip hero Prince Valiant, who wields a singing sword, Flamberge.