Continuity mistake: When Prissy's son is making a paper aeroplane on the log stump, you can see in the background there is an orange bush. In the next shot, a green bush appears from nowhere.
Continuity mistake: When Prissy's son is writing an equation on how to throw the baseball, he is writing it on the grass. But when we see a close-up of the equation, he is writing it on plain ground.
Continuity mistake: When Foghorn Leghorn enters Miss Prissy's house with the present and flowers, he closes the door behind him. But when Prissy asks Foghorn to go outside and play with her son, the door is open without no one having touched it.
Continuity mistake: When Egghead Jr. shows Foghorn Leghorn the formula for how he managed to dig him out of the ground, you can see that Egghead has nothing next to him, but in the next shot a spade has suddenly appeared.