Revealing: When Mac Vicar is going crazy he knocks the food off the table along with this yellow cup, however this reappears on the table again.

Factual error: All Borstal inmates were subject to the same mandatory haircut of short back and sides, yet many types of hairstyles are shown in the film.

Factual error: Short trousers were the compulsory uniform for all Borstal prisons, not the full length trousers shown throughout the film.