prisoner's rights

An federal appellate court in Pennsylvania reinstated a case brought by prisoners who would like to be able to watch adult-themed movies. A 1996 federal law bans all R, X and NC-17 rated movies. One US Supreme Court case that is often pointed towards when issues of prison regulations and prisoner rights clash is Turner v. Safley. Does that case apply here? It's possible. As the Yahoo article suggests, a broad prohibition against R and NC-17 movies would mean that prisoners can't watch films like Amistad and Schindler's List.