I think it was made in the 50s, probably B&W and i'm pretty sure it was British. The only scene that I remember is one of the inmates (or several) pouring hot boiling water over another inmate as a means of 'punishment'. For what reason I don't know. I remember as a kid seeing the film several times and the scene seemed quite shocking at the time, hence why it's still quite vivid in my mind. Anybody know the title? I've searched IMDB on all plots for 'Brirish prison' films, then again I could be wrong, it might have been Hollywood.