Despite the film having some undertones of comedy, the main tone is quite dark, and combined with the subject matter, it can be intense, making this one of Disney's darkest films in the Animated Canon.
This Disney movie may be offensive towards First Nations people due to the portrayal of Native Americans which can be stereotypical, a character calling the Native Americans "hellish red", and the fact that Pocahontas was a real Native American girl who had a very messed up and dark life in reality but is romanticized in this movie can also be very offensive.
In the middle of the ocean and during a storm, a man is swept overboard. When others want to save him, the captain commands "No, he's lost". (The hero dives into the water anyway, and has a harrowing time getting the man back to ship; this includes a period of both being deep underwater, looking up at the bottom of the ship, which a young child could mistake for drowning.)
The sequence shows both sides are marching towards war.
The ending is very sad and depressing. This film is dark, with serious themes like racism, bigotry, genocide, freedom, greed, hatred and war, a generally intense music score, and some violent scenes.