Boy Soldier (1987)

A young Welsh soldier on duty in Northern Ireland finds himself used as a political pawn, following a tragic incident during a violent clash with some of the local agitators. The Guardian proposed that "if Spielberg's ET, in the immortal words of Pauline Kael, was a bliss out, Karl Francis' 'Boy Soldier' is a bleed out for sheer fist shaking emotionalism, it would be hard to find another British film of recent years to beat it."

Unfortunately the movie Boy Soldier is not yet available on HBO Max.