Convict; Editor isn’t quite as grim a prison film as the title would indicate. It has several off-beat twists to its development, keeping it from being routine.While plotting is essentially a masculine soap opera, scripting [from a play by Martin Flavin] supplies plenty of polish and good dialog to see it through. Glenn Ford is convicted of manslaughter after a man he has slugged in a barroom brawl dies. Broderick Crawford is the d.a. who obtains the conviction, although sympathetic to Ford and his predicament. Crawford takes over as warden of the state pen and makes life more bearable for the young con. Just as he is ready for parole he witnesses the killing of an informer by another convict. His refusal to squeal jeopardizes his parole.