One of the musical's main characters is forced into prostitution by poverty. She and other women sing a song about prostitution, that contains various innuendos as well as the phrases "whore" and "making love." When a potential customer accosts the woman (non-graphically, more verbally than anything) they are both arrested.

Later, a man and woman share an innocent, non-sexual kiss.

Various people in the musical die from gunshot wounds in battle, but because of the concert setting, nothing is shown.

The strongest word is "s**t", which is used once. The term "whore" is used many times to describe prostitutes. "Bitch" is said once, and various people are called "bastards." "Damn" and "Hell" are used multiple times. A sailor holds his crotch and says he's hungry for a 'poke'. Use of 'Jesus' and 'God'. Other words used include 'arse', 'pissed' and 'slut'.

Grantaire holds a bottle in most of his scenes and is portrayed as being drunk

There are people on stage that act dead in the battle scenes, which may be a little disturbing to little kids or sensitive people.