Basically you can hold up Monkey Island to any classic pirate film and you’ll probably find some fairly clear visual parallels. Most of the stuff in this movie is long-established pirate tropes.
I don’t have too many of 'em on DVD, just three I think, but I watched a ton of them back in the day.
This particular one isn’t a Bud Spencer & Terence Hill movie, but a movie with Bud Spencer & Terence Hill in it. Not necessarily a bad thing I suppose, as the Spencer & Hill movies get a lot more formulaic. But this movie can’t really decide if it’s a comedy or a drama and both parts suffer for it. My Name is Nobody sort of does the same thing but much more successfully.