Continuity mistake: When Tom's feline friends are sneaking past Spike in order to get to Tom's house, the ginger cat has a bandage wrapped around his tail, but when the three cats enter the house, the bandage on the ginger cat's tail has disappeared.
Continuity mistake: Before Tom is about to draw a line on the alarm clock on the blueprint, you can see on the left hand side of the clock there is an "A" and an arrow, and on the right hand side is some writing. When Tom draws the line, the "A", arrow and writing have all disappeared.
Continuity mistake: When the stork takes the baby to Mr and Mrs Pierce, he is holding the bag in his left hand when he walks up the stairs, but when he arrives at the flat, the bag is now in his right hand.
Continuity mistake: When Bugs discovers that Mr Hyde fired a hole in the wood that he used to board the door up to stop Mr Hyde from entering the basement, the number of planks change between shots.
Continuity mistake: When the man is imitating the frog to the agent in the talent agency, he is initially holding his hat, and then throws his hands up into the air. When his hands come back down, the hat has disappeared.
Continuity mistake: When Bugs is horrified to realise that he was holding a picket sign, the yellow paint on his tail disappears briefly.
Continuity mistake: When Sam closes the door after escaping the lions, you can see there is nothing under his feet, but in the next shot a doormat has suddenly appeared.
Continuity mistake: When Manuel takes off his sombrero to give to the other mice, you can see he has a straw in his hand, but when we see Manuel in the next shot, the straw is nowhere to be seen.
Continuity mistake: When we first see the book that Bugs is reading at the beginning of the cartoon, there are words on the front cover and spine. In the next shot, the words have gone.
Continuity mistake: When Hippety Hopper breaks his crate apart on the rocks, you can see there are pieces of crate on the ground, but when we see Hippety in the next shot, the pieces have disappeared.
Other mistake: Philip De Guard is the cartoon's layout artist, yet when we see his name in the opening credits, it is spelled "Phillip" instead of the usual "Philip."
Continuity mistake: When Elmer says "Tell us about your life, Bugs", you can see that Bugs has his hands on his knees, but in the next shot his hands are clasped together.
Continuity mistake: When the Coyote attempts to capture the Road Runner for the first time, he is standing on a bare patch of pavement surrounded by the puddle of glue he is spreading. In the next shot, the Coyote is now standing on glue with no bare patch, and when he realises he is about to be hit by the truck, he is standing on bare pavement in middle of the glue puddle once again.
Continuity mistake: When Calvin Q. Calculus has invented the portable hole, he says "Eureka!" and you can that there is a beaker on the desk, but in the next shot the beaker has disappeared.