The movie's overall theme is that nothing and nobody can be truly known or understood. For every idea posited in the film, there is an equal and opposite one. For every character who has hope, another is more pessimistic. The movie introduces several problems that are never solved; thus, while thoughtful audience members will be intrigued, most viewers will be left feeling fairly negatively about the film's intentions.
The members of the wagon train come across a Native American; a character kicks him in the head (off screen), and some blood is seen dripping. Also some talk about whether or not to kill the Native American, as well as other violent tales told in dialogue.
One use of the "N" word, as well as "son of a bitch."
Drinking, Drugs & Smoking
An adult character is seen smoking a pipe on more than one occasion (appropriate for the era).