Expected superhero/hero's journey messages about the value of courage/being brave, loyalty, perseverance, accepting responsibility, strength of familial love. Sometimes it takes a voyage of self-discovery to learn what's necessary to triumph in the end.
Extensive fantasy comic book-style fighting. Little blood, but some impalements and drownings. Characters are shot with blasters, eaten by monsters, beaten. Aquaman uses his trident as a weapon in martial arts-style ways.
Rare use of words including "ass," "s--t," "hell," "son of a bitch," "damn," and "d--k."
Nothing in the film, but there are offscreen merchandising tie-ins.
Adults drink beer in a bar; one gets drunk, with little consequence.