If you loved Mumon: The Land of Stealth, try Shinobi no Mono 4: Siege
A bridge between a film you've already seen and one most people haven't. Shinobi no Mono 4: Siege has roughly 3.5× fewer votes than Mumon: The Land of Stealth — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theysit in Action / History territory. If that's the register that drew you to Mumon: The Land of Stealth, the second film will land in a comparable space — through a different lens.
What Shinobi no Mono 4: Siege is
You infiltrate Osaka castle. Tokugawa Ieyasu wants the Toyotomi clan erased. But ninja loyal to the clan slip past Ieyasu's cordon. Tanaka shoots in widescreen, heightening the chaos. The film presents a kinetic dance, shadow versus light.
Ask 
ChatGPT
Claude
Grok
Le Chat
Perplexity
for a deeper bridge
ChatGPTClaudeGrokLe ChatPerplexity