Continuity mistake: When Eddie and Baby Herman are in the hallway discussing the late Marvin Acme's will, Eddie repositions the baby carriage and starts unlocking his apartment door. He then turns around to face Baby Herman, but between shots his body rotates back to its original position. (00:35:20)
Continuity mistake: When Eddie is at the kitchen sink pretending to do laundry, Smart Guy pulls up a chair and starts asking about Roger's whereabouts. Eddie is squeezing a black sock with his right hand, but between shots he submerges it in the water. (00:41:40)
Continuity mistake: After Acme and Jessica's patty cake incident, we see Eddie taking a stack of pictures from R.K. Maroon as Roger repeatedly bashes his head on the desktop. Between shots, Eddie's left arm immediately moves to his side. (00:22:45)
Continuity mistake: In Acme's factory where a crime scene investigator finds the toon boxing glove mallet, his left hand releases itself from the handle between shots and several paintbrushes on the desk keep changing direction throughout the scene. (00:29:40)
Continuity mistake: In the scene where Eddie pauses at Toon Town's entrance to load his gun, the Plymouth changes its position on the road relative to the double-yellow lines. (01:08:00 - 01:09:25)
Continuity mistake: When Roger is blowing his nose, Eddie stands in the background holding a stack of pictures with his left hand (offscreen), but in alternating shots the pictures shift hands (widescreen only). (00:22:55)
Continuity mistake: When Dolores is informing Eddie that Cloverleaf wants to get their hands on Toon Town, her head changes position between shots. At first she's looking in Eddie's direction, but then suddenly she's got her eyes on the new Cloverleaf billboard. (00:49:05)
Continuity mistake: After Eddie overturns the drum of dip and flees with Roger, a patron on Doom's left side falls on his back twice in successive shots. (00:57:00)
Continuity mistake: After Jessica's Ink & Paint Club performance, the audience gives her a round of applause. As soon as Marvin Acme stops clapping his hands, the shot changes - but now he's seen clapping again all of a sudden. (00:20:25)
Continuity mistake: When Eddie unfastens his suspenders, the glass he placed on the newspaper changes its position between shots. (00:36:05)
Continuity mistake: When R.K. Maroon is in his office expecting a visit from Eddie, he takes a pistol and slides it about halfway into his pocket. But between shots, the pistol slides all the way in. (01:05:00)
Continuity mistake: After Eddie questions what happened with Earl, his friend with a notepad writes "Laid off." But he grips the pad in a different manner between shots. Note the position of his index finger when he shows Eddie the message. (00:11:35)
Continuity mistake: The driver's side windshield wiper on the Toon Patrol car moves itself to a different position as Eddie and Roger try and make a getaway near the bar. When Eddie looks for a key, only some of the wiper actually makes contact with the windshield, but one shot later the wiper has moved significantly further towards the center. (00:57:25)
Continuity mistake: After leaving Judge Doom to be flattened by the steamroller, Eddie runs over to the dip machine and turns off the ignition. If you watch as Roger and Jessica are about to be blasted with dip, the stream of dip goes from being on their left side, to right, then back to left again between shots. (01:28:35)
Continuity mistake: A few seconds after Eddie makes the big turn in Toon Town's tunnel, his right thumb noticeably changes its position on the steering wheel between shots. (01:09:50)
Continuity mistake: When Eddie first walks into the bar, he approaches Earl - keeled over on a table. Earl is wearing his hat, but one shot later the hat is lying flat on its top so that Eddie can place it back on his head. (00:11:20)
Continuity mistake: During "Somethin's Cookin'", Roger lands himself in a wall-mounted ironing board. As he emerges seconds later to a barrage of sharp utensils, notice how there's a wall outlet installed just below and to the left, but it wasn't previously there when he flew into the ironing board. (00:03:10)
Continuity mistake: Towards the end where Greasy laughs himself to death behind the dip machine's wheel, from the point at which he falls out until his ghost appears, the driver's side door window cranks itself halfway open. (01:25:30)
Continuity mistake: Upon entering Toon Town and crashing into Jessica Rabbit's Packard Eight, Eddie's steering wheel rotates all by itself - as indicated by the spoke positioning itself between his hands all of a sudden. (01:10:35)
Continuity mistake: As Eddie sits at his desk and starts looking at the second Catalina vacation photo, his hands grip the stack of photos in different locations between shots. (00:26:20)
Answer: Valiant also shares his name with Arthurian comic strip hero Prince Valiant, who wields a singing sword, Flamberge.