Some flirting.

A few people are seen kissing.

A woman appears to be a prostitute.

We learn that a woman has been a whore.

A very few people are shot in some scenes later in the film.

A young boy is captured by two men. He is later seen attempted kidnapped later in the film.

A man and a woman fight over a boy. The man smacks the woman in the face.

Brady Hawkes is mentioned to have his leg injured during a war.

The same man describes about having seen different types of people, including the ones who shot themselves for to death due to losing everything after gambling.

A man gets into a fight with several people with knives.

The word "whore" and some similar words are mentioned several times.

Some drinking.

A man is briefly seen smoking during the poker game inside the train.

Some potentially intense scenes.

Nothing frightening or disturbing, but some tension here and there.