John Constantine: So when a half-breed breaks the rules, I deport their sorry ass straight back to hell. I don't get them all but...I'm hoping to get enough to insure my retirement.
Angela Dodson: I don't understand.
John Constantine: I'm a suicide, Angela. When I die the rules say I got just one place to go.
Angela Dodson: You're trying to buy your way into heaven.
John Constantine: What would you do if you were sentenced to a prison where half the inmates were put there by you?
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.
Stay after the credits. There's an additional scene where John goes to visit Chas' grave and leaves a lighter, then as he's walking away you see Chas with wings and he flies up into the sky.