Goofs

When Aunt Figg brings Tom and Jerry to the evil doctor, they are in a small cage. The amount of bars on the cage keeps changing.

After Ferdinand knocks most of the planks off of the bridge, in one following shot, you can see that the whole bridge is intact, with all planks back.

When Tom climbs over the fence in a close-up, the part of the fence he's climbing over is spiky. In the next shot the entire top of the fence is flat.

When Robyn, Tom, and Jerry are underneath the bridge, Robyn's backpack disappears in one shot.

When Robyn is coloring and singing, she sets the first picture to her left side. In the next shot the picture completely disappears then reappears.

When Tom and Jerry are in the cage, Pugsy says, "How'd you guys wind up in a dig like this?" However his mouth is way out of sync with the audio.

When Tom walks out the front door to his old house only to find his owners have left without him, he takes off after them but is chased back home by a bulldog moments later. Yet he can't back in the front door because it's locked despite the fact that he didn't even bother to close it in the first place and everyone else had already vacated the premises.

Jerry recovers Pristina's letter from the fireplace, stating with Tom that Robyn "wouldn't believe [that her father is alive] if she doesn't read that". Afterwards, they're caught and sent to Applecheek's prison; the letter is supposedly destroyed or lost. When they reunite with Robyn, they tell her her father is alive and she believe it straightaway, without reading anything about that.