John Constantine: Dabbler of the occult, chain smoker extraordinaire, blond, British... wait that's Keanu Reeves, who is only half of those things in this movie! What's going on here? The GBBV crew try to get to the bottom of this while maintaining ownership of their souls and fending off the forces of Heaven and Hell in the 2005 adaptation of the Hellblazer comic series in the aptly named Constantine.