But arguably the most fun catch we made is the inclusion of director DeBlois in the actual Isle of Berk. Actor Mason Thames (Hiccup) and Nico Parker (Astrid) confirmed the cameo to NBC Insider when we spoke to them for the film's junket.

Most filmmakers have a list of regrets about their projects, but getting a do-over is a rarity: "it was satisfying to check off a list of those little things, but also make room for missed opportunities.

Director Dean DeBlois recreates "The Forbidden Friendship" and "Test Drive" sequences with a new and improved Toothless.