SolarmovieOne

Complaining that Francis the Mule was getting more fan mail than he was, Donald O'Connor bade adios to the "Francis" series with this 1955 entry. Once more, O'Connor plays Army lieutenant Peter Sterling, who heads to a navy base when it looks like his old pal Francis is about to be auctioned off as surplus. In short order, Sterling is mistaken for a bos'n's mate whom he resembles, and it's off to sea for both Peter and the mule. Among the able-bodied seamen in this film is a chap named Jonesy, played by a young Clint Eastwood in his second movie appearance. An eleborate slapstick finale brings this one to a rousing conclusion

How to Watch Francis in the Navy Legally and Safely

If you want to stream Francis in the Navy 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 Francis in the Navy 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.