A 'HORROR' film preview of unruly teenagers' antics will make compulsive viewing for parents. In the first phase of a surveillance exercise last weekend police targeted a gang of 50 youngsters who have been intimidating residents on the huge Tyldesley private housing estate between Astley Street and Henfold Road.

A police spokesman said: "The main problem is sheer weight of numbers -- locals feel intimidated and alcohol is being consumed by under age drinkers. We'll be back there this weekend and at other problem destinations when necessary. The video footage we take may later be shown to parents of those identified at the scene."

Earlier this week customers were trapped inside Alldays store on the precinct for around quarter of an hour when young pranksters jammed a lump of wood in an exit. Staff declined to comment.