The Croods (2013)

Continuity mistake: In the scene where Grug is chasing after Guy, they both wind up stuck in a tar pit. After successfully escaping they are covered in tar and Grug even gets himself stuck to Guy. In the next scene everyone is running from the exploding ground up between the mountains and both Grug and Guy are completely clean and free of tar.

Daniel Gauthier

Continuity mistake: During the Croods' journey to the mountain they travel through several different areas including a lake, yet in some shots the background to the mountain shows a clear, open field of nothing.

Continuity mistake: When Eep meets Guy at the fire for the first time, she throws a big rock at him. He yells in pain, and you can see his leg is pinned. But as she picks him up and sniffs at him, the rock is two or three feet away. Even if the rock rolled off his leg, it was way too heavy to lift him up with no effort at all.

Hermias Nieuwoudt

Guy: I call them shoes.
Eep: I LOVE them! Where are my feet?
Guy: Don't worry! They're still there.

Grug: Never not be afraid.

Eep: This is good... What do you call this?
Grug: I call it... A hug. Because it rhymes with Grug; but you can always change it if you don't like it.
Eep: No, I like it.

Question: If Grug is so scared of things in the outside world and considers anything new to be dangerous, then why does he keep Guy with him instead of getting rid of him?