Constantine is a 2005 American film based on the Hellblazer comic book, with some plot elements being taken from the "Dangerous Habits" arc (issues #41-46). It was released on February 8, 2005 in Hong Kong, and on February 18, 2005 in the U.S. and Canada. It is rated R For Violence and Demonic Images by the MPAA. It also contains mild language.

The story of irreverent supernatural detective John Constantine, who has literally been to Hell and back. When Constantine teams up with skeptical policewoman Angela Dodson to solve the mysterious suicide of her twin sister, their investigation takes them through the world of demons and angels that exists just beneath the landscape of contemporary Los Angeles. Caught in a catastrophic series of otherworldly events, the two become inextricably involved and seek to find their own peace at whatever cost. Written by unit publicist/WB

John Constantine is the exorcist who has been to Hell and back, and whose soul is sentenced to hell. He has been deporting demons to get on good terms with God, yet God wants self-sacrifice. After the mysterious suicide of her twin sister, detective Angela Dodson goes out in search of the truth. Together, Constantine and Angela battle the demons on Earth. Written by wknieper

John Constantine is a world-traveling, mage-like misfit who investigates supernatural mysteries, walking a thin line between good and evil. Constantine teams up with a female police detective, Angela, who seeks his help while investigating the suicide-like death of her twin sister. Written by austin4577@aol.com