If you loved Serenity, try Battlestar Galactica: Razor
A bridge between a film you've already seen and one most people haven't. Battlestar Galactica: Razor has roughly 8.4× fewer votes than Serenity — 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
Theyboth carry the raw mood tag, and they sit in Action / Science Fiction / Thriller territory. If that's the register that drew you to Serenity, the second film will land in a comparable space — through a different lens.
raw
What Battlestar Galactica: Razor is
Pegasus hangs in orbit, autumnal gloom, alarms blaring, Kendra Shaw at her station, Cylon war looming. Shaw's eyes on the battle-scarred ship, guns blazing, chaos erupts. Félix Alcalá directs this tense sci-fi thriller.

