A look at whether the key principle of the Children Act - that in family breakdown and divorce, the welfare of the child is paramount - is being adhered to.

A major series to mark 20 years since the passing of the Children Act, investigates whether its key principle is being adhered to - that in family breakdown and divorce, the welfare of the child is paramount.

One in three British children have parents who are separated, and it's their relationship with the absent parent that's the key factor in their long-term wellbeing. The first film follows two families, one locked in a long battle in the Family Court, and the other determined to stay out of court and manage the split themselves. The film explores the impact of separation on children's lives and how decisions made in court play out in already troubled relationships.