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.
Crowning Moment of Heartwarming: the entire Blue flashback. It's interesting that the King is the one telling this flashback, describing his two mortal enemies as tender, selfless lovers.
Family-Unfriendly Aesop: Many Western critics saw the fundamental message of the movie as, "Despotism and brutal military conquest of your neighbors is acceptable if it's done in the name of unity and peace." However, in China this message isn't particularly unusual. China's long history of civil wars is partly responsible.
Tear Jerker: Each of the three tales explaining how Nameless got to the throne room is a tear-jerker, and the film ends on a fourth.
Values Dissonance: Many Western viewers see the film as an open endorsement of despotic rule, while Eastern viewers are more likely to see it as a question of whether the end justifies the means. Or whether your goals or their potential aftereffects are more important.