Serenity (2005)

In writer/director Josh Whedon's 26th century, sci-fi space action-adventure/western film (adapted from the TV series Firefly) - his directorial debut film:

• the opening scene of doctor Simon Tam (Sean Maher) rescuing his psychic 17 year-old, goth-like sister River Tam (Summer Glau) from her Alliance captors, led by the evil and sinister government Operative (Chiwetel Ejiofor), who were experimenting on her brain and wishing to harness her power ("Given the right trigger, this girl is a living weapon")
• all of the characters that composed the crew of the rogue Serenity transport spacecraft that took on the Tams as passengers - including Captain Malcolm "Mal" Reynolds (Nathan Fillion)
• the scene in a way-station bar when River saw a subliminal secret message in an anime advertisement ("Miranda") - that triggered an aggressive attack
• the scene on the Outer Rim habitable planet of Miranda where the crew encountered only corpses and watched a terrifying hologram from scientist Dr. Caron (Sarah Paulson) who explained how the Alliance caused death on the planet by using a Pax drug released through the air processors - and thereby also contributed to the development of hyper-aggressive, menacing, flesh-eating Reavers
• the final standoff scene of the Serenity crew against the ferocious Reavers as Mal broadcast the truth of the hologram message ("I'm gonna show you a world without sin") after fighting the Operative and defeating him as River simultaneously battled the Reavers single-handedly and left a pile of their corpses at her feet to save the crew
• the concluding scene with River serving as Mal's co-pilot in a repaired ship (and Mal's final line: "We'll pass through it [storm] soon enough...What was that?")