No positive messages in dark DC animated feature.
The third act of the movie is almost entirely made up of fighting between heroes loyal to Earth and those fighting for Darkseid. Superhero and villain violence throughout. Punches, kicks, laser beams, machine guns, characters thrown around, tied up, taken prisoner. Attempted suicide. Character shot and killed in the forehead.
Sexual innuendo concerning oral sex.
Regular profanity usage. "F--k" and variations used. Also: "c--kblock," "a--hole," "s--t," "bitch," "piss," "asses," "crap," "bastards," "bitches." UK slang: "bollocks" and "wankers."
Pretty much everyone from the DC Comics Universe is present and accounted for in this movie; characters employed in a wide array of merchandising.
Binge drinking in a bar, characters passed out. One of the heroes spends his days binge drinking in the aftermath of an epic losing battle. Cigarette smoking.