The film features Astrid Hofferson, a female Viking warrior, who consistently engages in and wins close-quarters physical combat against multiple male opponents. She demonstrates superior skill and strength using melee weapons in training drills and during village defense.

The live-action adaptation includes race swaps for established characters. Astrid Hofferson, originally a white Viking girl, is portrayed by a biracial Black/white actress. Fishlegs Ingerman, depicted as white in the animated series, is played by an actor of Māori descent. These instances meet the definition of a race swap.

The film portrays Christianity positively through thematic parallels, emphasizing values like mercy, reconciliation, and empathy, aligning with New Testament teachings and Catholic moral concepts. The narrative's core message of overcoming fear with love resonates strongly with Christian ethics.