These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Adventures of Prince Achmed
Awesome Art: The level of detail that goes into the cutouts is just astounding, and really makes you appreciate the amount of work and dedication to it that Reiniger had.
Incest Subtext: Might be a Values Dissonance thing, but a scene from early on in the movie will raise an eyebrow or two - when Achmed protects his sister Dinarzade from the sorcerer. They proceed to stare at each other intensely, with Dinarzade carressing Achmed's cheek.