Continuity: When Constantine manage to get the mirror through the window he falls on his back. To the right on the screen a chair lies on the floor beside a dresser. A few shots later when it cuts to Constantine getting up we can see the chair has changed position as its back now covers the opening of the dresser.

Continuity: Constantine catches a spider under a glass and blows some smoke in it. The amount of smoke in the glass differs between shots.

Revealing: When the Priest dies in the liquor store, there is an overhead shot of the 4 or 5 police cars that respond to the scene. Two of the cars have the same number on them.

Continuity: When the mirror has been brought and Constantine tells them to tie the cord to it we can see one of them tying it. When Constantine says "Close your eyes" it cuts and we can see the man has suddenly stopped tying the cord and is now holding onto the mirror.

Continuity: When Constantine gives Baltazar the final punch you can see Baltazar's tie lying on his chest. When it cuts from behind him his tie is over his shoulder. In the next shot it's back on his chest.

Factual error: In the scene where Angela is watching the security video on her laptop of her sister committing suicide, you can see she's playing it using Quicktime. She rewinds a couple of seconds by clicking on the first button of the video player. Actually, when you click this button, it takes you to the beginning of the video. The second button would have rewound it a short time.

Continuity: In the pool when Constantine grabs the possessed Angela, he grabs her by her head with both hands. When it cuts he's holding onto her shoulders.

Continuity: When Lucifer lights Constantine's smoke he has his left arm down, then he closes the Zippo and it cuts. Now his left arm is up.

Continuity: When Constantine is preaching over the possessed girl it cuts to a close-up of the chubby Thai man, we can see the man standing beside him has his head turned to right. His head change from being turned to right to left between the shots.

Continuity: When Chas is in his car talking to his mirror you see him holding his right hand on the steering wheel. When Constantine calls for him it cuts and you see Chas resting his arm on the seat beside him instead.

Continuity: When Constantine pulls the rope attached to the mirror the distance between his hands on the rope change several times between the shots.

Continuity: As Lucifer comes down to John his feet are covered in a black, tarry substance that drips all over the floor. When he walks into the hydrotherapy room the tops of his feet are still covered in this substance. But in the shot where he pulls Angela away from Gabriel, his feet are clean.

Continuity: In the scene where John commits suicide by slitting his wrist, the soles of his shoes go from brand new and unmarked (quite clearly seen in a couple of close up shots) to scuffed and worn (also seen quite well in a couple of shots).

Continuity: When Constantine gives Angela Isabel's name tag, Angela is holding the tag so that half the tag is between her fingers and the rest of the half inside her hand. When it cuts half the tag is still between her fingers but the rest of the half is now outside her fist.

Continuity: Towards the end of the movie, when Angela is shooting the Mexican in the pool, you plainly see that the bullets are exiting out his back through his very white shirt. You see the blood burst forth from his back as they exit, then you see them hit the wall behind him. Yet, just as he grabs Angela and shoves her underwater, you have a perfect view of the back of his now completely unmarred white shirt - no holes whatsoever anywhere.

Continuity: When Father Hennessy stabs himself with the cork opener the items around him change position between the shots.

Continuity: There is a close up shot, when John slits his wrist, of the blood seeping around his watch. It is an integral part of the scene, yet moments later, when viewed from above, the blood is nowhere near the watch.

Continuity: When the Mexican picks up the Spear of Destiny, his grip on it changes between the shots.

Continuity: When Constantine gets thrown into the glass paned door at the end just before he slashes his wrists, every time it cuts to the scene showing the door the broken glass left in the door is always in a different pattern.

Continuity: When Constantine is seeing the doctor about his cancer you can see the lights on the screen showing the X-rays are on. When it cuts after she says "This is aggressive", the lights are suddenly off.