The 2025 live-action film "How to Train Your Dragon" was filmed primarily in Northern Ireland, with additional key locations including Iceland, the Faroe Islands, and Los Angeles, California. In Northern Ireland, filming took place at large studios such as Titanic Studios and Belfast Harbour Studios in Belfast. Various iconic natural and historic sites across Northern Ireland served as outdoor filming locations, such as:
- Tollymore Forest Park (County Down), where forest scenes were shot including the scene where Hiccup meets Toothless.
- Dunseverick Castle on the Causeway Coast.
- Murlough Bay.
- The Giant's Causeway, known for its unique basalt columns.
- Foley's Bridge in Tollymore Forest Park was also featured.
The Faroe Islands contributed dramatic coastal landscapes and natural features representative of the fictional Isle of Berk, including Tindhólmur Islet, a jagged rocky islet used as inspiration for Berk. Iceland's volcanic landscapes, glaciers, and black sand beaches were also used for exterior flying shots and dramatic scenes like the hunt for the Red Death. Some filming was completed in Los Angeles for effects-heavy shots and pick-up scenes after principal photography. This combination of studio work, Northern Ireland's lush woodlands and historic sites, the wild Viking-like landscapes of the Faroe Islands and Iceland, and studio filming in Los Angeles, created the rich and vivid world depicted in the film.