Happened to stumble across this thread so a little late adding to it, but thought id post
The school with kids playing around the school yard, in the earlier part of the film, was filmed at hillsborough school - i know this cause im in the yard somewhere playing I remember the day well, with cameras dotted about the place. I can name most of the kids in that scene!
As already said some of the scenes were filmed in and around hillsborough. The newsagents that crops up (can't remember at which point), was mr ridges newsagents, on penistone road to the right of swan mortons (though was demolished not long after when they widened the road and blocked borough road off from penistone).