I saw this film at the weekend and agree with Lona and ffinochio that its focus is the investigative journalism. MOnica to accuse those of us who have seen this film of doing so because of "hidden titillation and unadmitted pleasure" is unnecessarily combative and frankly, extremely rude. It also suggests that the professionals in the police, probation, social work, mental health, prisons etc who investigate sexual abuse of children are similarly motivated.
You question why "nobody is interested in making a film about teachers, social workers, families who abuse children? The list for each of those would far exceed ministers of all denominations" . Yes, child sexual abuse is prevalent in society. It's only in recent years that it has been spoken about more openly but many people still find it so distressing that they prefer to believe those who investigate are over zealous or meeting some kind of perverse personal need.