Filming on The Mortal Instruments: City Of Ashes, starring Lilly Collins and Jamie Campbell Bower, has been delayed indefinitely.
The first instalment of the big screen adaptation of the teen fantasy novels, Mortal Instruments: City Of Bones, has only just been released in cinemas, but pre-production had already started on the sequel, with filming due to start in October.
However, Constantin Film has now said in a statement: "Pushing back the start of production of City Of Ashes was a decision we did not take lightly. But after speaking with all of our partners on the creative and distribution side, it was clear that it will be beneficial to have more time to reposition the film in the current market place."
The first film has made 58 million US dollars (£36.8 million) worldwide in its three weeks of release.
The films are based on the teen fantasy romance books by Cassandra Clare. Set in Victorian England, they feature a girl who finds out she is part of a hidden race of demon-slaying angels known as Shadowhunters locked in a battle with warlocks, vampires and werewolves.
Sigourney Weaver was among the stars signed up to the sequel.