Mark Lawson’s insightful overview of Catholic fiction in American drama (“Creativity’s roads that lead from home”, 30 May) actually omitted the finest expression of the Catholic sensibility in the cinematic arts in recent decades: Oz. A multi-part series set in a California maximum security prison the narrative unfolds with unnerving explicitness, sophisticated theological undercurrents and uncommonly good acting.The creative genius behind this epic journey into the bowels of depravity and luminous goodness, mad revenge and acts of self-sacrificing heroism – the general stuff of prison life in the United States – is Tom Fontana.  He even modeled the psychologist-nun – a key player in the inferno that is Oz – on his own sister, similarly