Cast a Deadly Spell 1991 is a horror, detective HBO film with Fred Ward, Julianne Moore, David Warner and Clancy Brown. It was directed by Martin Campbell, produced by Gale Anne Hurd, and written by Joseph Dougherty. The original music score was composed by Curt Sobel.
HBO produced a sequel, Witch Hunt. Witch Hunt takes place in the 1950s during the red scare, in which magic is substituted for communism. Dennis Hopper played Lovecraft in place of Fred Ward. Additionally, many characters have different background stories than in Cast a Deadly Spell. For example, Lovecraft refuses to use magic in Cast a Deadly Spell on principle, and because of a bad experience in Witch Hunt.
Source: Wikipedia