Continuity mistake: When Petrie gets to work on the tall tree's leaves, we see Ducky standing below him with both feet planted firmly on Littlefoot's head. Between shots, Ducky's right foot places itself on the tree. (00:40:40)
Continuity mistake: As Petrie shakes the tall tree's branches for leaves, Littlefoot loses his grip and falls onto Spike's head. In the following shot he's standing beside Spike instead. (00:41:00)
Continuity mistake: When Littlefoot and the gang are asleep within a massive paw impression, Sharptooth approaches. As Littlefoot stands there in shock, he turns in the opposite direction between cuts. (00:46:00)
Continuity mistake: In the scene in which they all spend the night in Sharp Tooth's footprint, when they fall asleep, they are under a large tree, but when they awake, as Sharp Tooth is coming, the tree has disappeared. (00:48:00)
Continuity mistake: While Cera and Littlefoot fight with each other, half of the paw impressions in the sand vanish after Spike and the others take cover behind a stone. (00:48:50)
Continuity mistake: When Petri fell into the tar pit, there were two dinosaur skeletons, one on each side. When Spike, Ducky and Littlefoot went to rescue him, the skeletons were gone.
Continuity mistake: When Petri is lifted up the tree to pull down leaves, he only pulls down a little bit. Then when he falls out of the tree, the ground is covered with leaves and the tree looks bare.
Continuity mistake: Throughout the movie, the size comparisons between the 5 kids keeps changing. Example: During the scene when Cera and Littlefoot are popping bubbles in the pond, Littlefoot is twice the size of Cera, but just before they started popping the bubbles, they were closer in size.
Continuity mistake: When Ducky meets Littlefoot, he has a tree star on his back, but when they are leaving, the tree star is gone. It then reappears when they are looking around the corner after another dinosaur has passed by.
Continuity mistake: When Ducky is hatching from her egg there are many eggs in the nest, about six or seven. But after her mother rescues her and brings her back to the nest there are only three other babies in the nest.
Continuity mistake: When Ducky goes into the cave after the t-rex, she screams to get its attention, it pauses for a moment and keeps walking. A few seconds later, it jumps out right behind her.
Continuity mistake: Sharptooth's eyes are red, but when it wakes up from the coma one of them is yellow.
Answer: We are not shown how they got out of the tar.