How to Train Your Dragon (2010)

Continuity mistake: When Hiccup first finds Toothless, there is a dramatic shot where the camera pans over Toothless, and his wing briefly obscures his eye, which is open after the wing passes. But look at the tip of the wing. During the shot there is a stretch of rope wrapped around it. In the next shot, the rope is much higher up the wing and not wrapped around it anymore. (00:13:15)

Friso94

Stoick: When we crack this mountain, all hell is going to break loose.
Gobber: In my undies. Good thing I brought extras.

Trivia: If you look closely at Toothless, you can see he has scars from the "mangler" Hiccup uses to shoot him down. They are located on his throat, left foot, and wing.

Question: Is Gobber's line about trolls being real ("They steal your socks! But only the left ones.") a reference to Lilo and Stitch? When describing Stitch, Jumba says "He will be irresistibly drawn to large cities, where he will back up sewers, reverse street signs, and steal everyone's left shoe."?