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After a quayside mix-up with the Italian family of his fiancée, Able Seaman Knocker White finds himself literally left holding the baby. Unable to return it before his ship sails he enlists the help of best mate Puncher Roberts to smuggle the child aboard. But babies are surprisingly demanding and gradually the whole crew is drawn into helping keep it fed and washed - and undiscovered. Even so, the officers above deck start to puzzle over the increasingly strange happenings on board.

How to Watch The Baby and the Battleship Legally and Safely

If you want to stream The Baby and the Battleship 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 The Baby and the Battleship 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.