The end credits of the live-action "How to Train Your Dragon" (2025) feature a brief post-credit scene showing Hiccup with the Book of Dragons. In this scene, Hiccup opens to the Night Fury page, which remains blank, then places his personal notebook on top of the book, revealing his detailed drawing of Toothless. This moment is a callback to an earlier scene in the movie when Hiccup first sketches Toothless. The scene is very short, with no dialogue or major plot revelations, and does not tease the upcoming sequel directly. It mainly serves as a quiet, reflective moment connecting Hiccup and Toothless through the Book of Dragons.
During the credits, viewers also get to see animation of dragons and beautiful overhead shots of real-life filming locations. The post-credit scene occurs at the very end, so viewers need to watch through the full credits to see it. This scene is unique to the live-action adaptation as the original animated films did not have post-credit scenes.
In summary, the "How to Train Your Dragon" end credits scene is a brief, meaningful visual moment featuring Hiccup's drawing of Toothless in relation to the Book of Dragons, with no dialogue or new plot hints. It is worth staying through the credits to catch this subtle yet important scene.