If you loved Shelter, try Berserk: The Golden Age Arc III - The Advent
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theyboth carry the foreign gem mood tag, and they sit in Animation / Fantasy territory. If that's the register that drew you to Shelter, the second film will land in a comparable space — through a different lens.
What Berserk: The Golden Age Arc III - The Advent is
You wake alone on a battlefield strewn with the dead when the Band of the Hawk’s last camp erupts in blade flashes. Shadow assassins close in, their blades whispering death for Griffith’s body and Griffith’s legend. Then the sky splits open and metal roars through the smoke. Kubooka’s camera never lets you catch your breath, the carnage whipping past like a tide that drags you under.
Ask 
ChatGPT
Claude
Grok
Le Chat
Perplexity
for a deeper bridge
ChatGPTClaudeGrokLe ChatPerplexity