Of course, the March 2010 movie, "How To Train Your Dragon", was a phenomenal hit, striking love in the hearts of every age. The main reason was most likely to be the dragons; more specifically, Toothless the Night Fury.
In the movie, Toothless is an extremely rare, intelligent breed of dragon called "Night Fury". To kill on was close to impossible, and no one has ever seen one and lived to tell of it. In the book by Cressida Cowell, which the movie is loosely based on, he is portrayed as a Common Garden Dragon, with green skin and red wing membranes. He is also much smaller than the movie Toothless; book Toothless can easily rest on Hiccup's shoulder.
Toothless in seen as being quite dog-like when docile, with his pupils rounder, and apparently likes to imitate Hiccup's movements and habits, such as using a small tree to "draw" with as Hiccup did when he drew Toothless. He has shown that he has a superior ability in battle, taking on the Monstrous Nightmare and winning just to save Hiccup.
Toothless also seems to be able to understand human speech,
agreeing with Hiccup on many occasions and not taking offensive comments to him or his human friend well. Toothless also has an undeniable facial similarity to Stitch from "Lilo and Stitch".
Toothless is certainly the love of "How To Train Your Dragon", because I know I sure have grown very, very fond of the Night Fury. This movie, especially the dragons(Toothless even more), will most definitely be a staple for every DVD collection, or, more importantly, in peoples' hearts.