Amid the mayhem, the movie's message is that you always have a choice. Just because you're expected to act a certain way or follow a certain path doesn't mean it has to be so, because you can choose to do something different.
Gory and bloody, with lots of blood splattering and cringe-worthy assassination scenes. Not all of the killings are up close -- many are from far away (Agent 47 is an excellent marksman who can shoot people from remarkable distances) -- but the body count is incredibly high. People are mostly shot, but they're also impaled or blown up or crushed to death.
A female character occasionally wears tight/revealing clothes like a bikini bottom but no top (she's not shown fully topless), a white tank top with no bra, or just a towel. A shower scene reveals the silhouette of her stomach and rear end, but only from the side. Extras kiss in a crowd scene.
Many uses of "f--k" and "s--t," and a couple of exclamations of "Jesus."
So many close-ups of an Audi sedan that the movie seems like a long commercial for it. Also, of course, the connection to the video game on which the movie is based. Other brands seen include Mercedes, Siemens.