Parents guide

A woman is submerged in water (at two different times) so her shirt becomes see-through and her black bra can be seen.

When the possessed scavenger is passing through a cattle field the animals can be seen falling dead and immediately decaying.

A character rips Constantine's shirt in half and two hands sticks their hands into his torso while pinning him up (he screams in pain and agony) for a few seconds, while smoke appears for a few seconds, then releases both hands and drops him down to the ground. The next shot reveals smoking black tar, revealing the lung cancer from his body.

A character punches a demon inhabiting a young, unconscious girl.

A character coughs up a bit of blood into a sink after performing an exorcism.

John fights a demon taking shape as a swarm of bugs. Insect goo is on a vehicle after it is killed.

Two instances of John killing demons in supernatural ways, they disintegrate and/or turn to dust.

John splashes some holy water on a demon villain's face, disintegrating it and revealing green matter (resembling Two-Face). The demon pins John against the wall by his throat, choking him before John punches him several times with brass knuckles. He later shoots it offscreen. A large, powdery, green splatter is seen where his head used to be with bits of the face still talking.

John is pinned and thrown across the room by Gabriel. He later punches her/him, giving him/her a bit of a bloody lip.

John slits his wrists (not visible), two small puddles of blood momentarily form around him.

Fuck, shit, prick, ass, bitch.

John flips a demon off.

Frequent alcohol and tobacco usage.

One of the main and occurring theme in the movie is suicide.

A charracter jumps from the top of the psychiatric hospital - we see the whole act, as the charracter jumps and falls through glass roof into the pool.

Throughout the movie, a dead body is shown in a few instances (it is just pale without any blood or damage) which still can be a bit disturbing.

Two beings stick their arms in John's upper torso, causing him pain. A man stabs his own hand several times with a bit of blood visible.

Two exorcisms (the first one has a jump scene). A couple more jump scenes involving demons and other supernatural phenomena.