Teen Clary (Lily Collins) steps into a world of demon-slaying Shadowhunters in this adaptation of Cassandra Clare’s fantasy series.
It doesn’t want for ideas or incidents. The vampires vs werewolves thing that Underworld has laboured for four movies? The Mortal Instruments tackles it in a set-piece.
What Harald Zwart’s film lacks is the focus that might make this cluttered set-up more than the sum of its dour design, raging hormones, incessant skirmishes and wearying exposition.
As for some of the big reveals, viewers will see them coming from a galaxy far, far away.