If you loved Die Nibelungen, try Der kleine Vampir
Eine Brücke zwischen einem Film, den du schon gesehen hast, und einem, den kaum jemand kennt. Das teilen sie, und was der zweite macht, was der erste nicht macht.
Was sie teilen
Both films are directed by Uli Edel, and they sit in Adventure / Fantasy territory. If that's the register that drew you to Die Nibelungen, the second film will land in a comparable space — through a different lens.
What Der kleine Vampir is
The film attempts a kid-friendly take on vampirism. A lonely boy befriends a young vampire, and together they search for an amulet that can protect Rudolph's family from a relentless vampire hunter. It's probably somebody's favorite movie.
Ask 
ChatGPT
Claude
Grok
Le Chat
Perplexity
for a deeper bridge
ChatGPTClaudeGrokLe ChatPerplexity