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After losing Vanessa (Morena Baccarin), the love of his life, 4th-wall breaking mercenary Wade Wilson aka Deadpool (Ryan Reynolds) must assemble a team and protect a young, full-figured mutant Russell Collins aka Firefist (Julian Dennison) from Cable (Josh Brolin), a no-nonsense, dangerous cyborg from the future, and must also learn the most important lesson of all: to be part of a family again.

How to Watch Once Upon a Deadpool Legally and Safely

If you want to stream Once Upon a Deadpool 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 Once Upon a Deadpool 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.