Trivia: In the scene after Hiccup finally gets Toothless' new tail fin to work, and the two are relaxing after they fly through the fire ball, the two are greeted by a group of tiny dragons. This little dragon was actually what Toothless was originally going to be, as he was in the book, until they changed him to a dragon big enough for Hiccup to ride to suit the movie. (00:46:15)
Trivia: Before Toothless brings Hiccup and Astrid to the dragon's nest, we get several shots of other dragons. Pay attention to one shot of a Monstrous Nightmare; it can be seen holding Gloria, the hippo from Madagascar. (Confirmed on the DVD's commentary.). (00:56:50)
Answer: No, left socks going missing is a long-running gag. Ren & Stimpy found the alternate dimension they disappear to in one episode of their show.
Phixius ★