Sigourney Weaver is in negotiations to join the cast of the supernatural fantasy sequel "The Mortal Instruments: City of Ashes" at Constantin Film.
The film is the planned follow-up to "The Mortal Instruments: City of Bones" which hits cinemas in three weeks. That film's director Harald Zwart and at least six of the major cast members are slated to return.
The film series follows a girl (Lily Collins) who discovers she is a demon-slaying Shadowhunter and enters a world filled with warring vampires, werewolves and faeries. In the process, she falls for a fellow Shadowhunter (Jamie Campbell Bower).
Weaver's part is one of the few new roles in the second outing. The actress will play the ruthless leader of the Shadowhunters, and will stop at nothing to destroy the man who killed her son.
Filming on the sequel is slated to begin in October.
Source: Heat Vision