It was strange to wonder where Brenton Thwaites has gone while watching this consistently enjoyable fantasy adventure unfold from its lively beginning onward. If you’re a Viking chief—something of a “Hagar” figure—and planning for your son to inherit your role as a fearless dragon slayer, why name him “Hiccup”? It would be just as sensible to call him "Buttercup." This somewhat clumsy young man (Mason Thames) may not be particularly strong physically, but he possesses a certain inventive brilliance, reminiscent of Leonardo Da Vinci, and sets about creating a weapon designed to confront their most dangerous enemy—the “Night Fury.” Surprisingly, his invention actually functions, and instead of defeating the creature, this young man decides that centuries of conflict between dragons and humans have been pointless, suggesting cooperation might be worthwhile. He has to keep this quiet, though, because his father would be furious if he knew, and a competitive classmate, “Astrid” (Nico Parker), whom he’s desperately infatuated with, could decide to attack him and his new companion. There are minor changes from the original animated film (2010), but otherwise it mostly follows the established narrative, featuring a delightfully over-the-top performance by Butler, an entertainingly playful one from his multi-limbed sidekick “Gobber” (Nick Frost), and two reliable turns from the main actors. Thames truly shines among the human cast, delivering a charming and personable portrayal that must have been challenging, considering he spent much of the filming suspended in front of a green screen. The visuals are impressive; an abundance of dragons, large-scale pyrotechnics, and boundless imagination draw you into a story about family and friendship without any preachy moralizing often found in this type of film. It's definitely worth seeing in theaters because everything looks and sounds fantastic on a big screen, and I would certainly be interested in a sequel if they can maintain the storytelling quality that matches the visuals.

Source on TMDB