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After a failed mission to capture international terrorist "The Wolf" lands CIA agent Ethan Renner (Kevin Costner) in the hospital, he discovers he has a mere few months to live due to terminal brain cancer, which has spread to his lungs. Determined to reconnect with his estranged wife Christine (Connie Nielsen) and daughter Zoey (Hailee Steinfeld), Ethan retires and returns home to Paris. But it's not long before the CIA needs him back and top agent Vivi Delay (Amber Heard) offers him a deal he can't refuse. In exchange for an experimental drug that may prolong his life, Renner must locate The Wolf and eliminate him. When Christine leaves for three days on a business trip, Ethan must juggle the responsibilities of looking after a teenage girl with his volatile mission of assassination.

How to Watch 3 Days to Kill Legally and Safely

If you want to stream 3 Days to Kill through reputable and legal services, there are a few good options depending on where you are. Subscription platforms like HBO Max, Disney+, Netflix, Amazon Prime Video, and Apple TV+ sometimes carry 3 Days to Kill films or related DC titles—though availability depends on your country.

If you’d rather not commit to a subscription, there are ad‑supported, free (but legal) platforms such as Tubi, Pluto TV, Peacock or Crackle (where available in your region) that occasionally host superhero films.

Lastly, don’t forget about library‑linked streaming options like Kanopy or Hoopla (if your library or university is registered), and official uploads by film distributors on YouTube—these can also give you legal access to classic movies.