Serenity

Serenity (2005) is a sci-fi action film from Universal Pictures — watch it online on iFILM. Writer-director Joss Whedon brought his cancelled TV show Firefly to the big screen, reuniting Nathan Fillion as Captain Malcolm Reynolds, Summer Glau as River Tam, and the rest of the Serenity crew, with Chiwetel Ejiofor joining as the relentless Alliance Operative.

Mal's crew scrapes by on cargo runs at the edge of inhabited space. They're hiding River — a young woman the Alliance spent years turning into something they now desperately want back. The Operative hunting her isn't cruel; he's principled, which makes him far harder to stop. Add the Reavers prowling the outer reaches — predators who leave nothing behind — and the crew of Serenity has no good options, only the least bad ones.

Made for $39 million, the film gave Firefly fans the conclusion the network never allowed, and it works just as well for viewers coming in cold. Whedon packs genuine stakes into every act: characters you trust can die, and the secrets River carries reshape everything. Stream Serenity (2005) online on iFILM.