Robert De Niro and Sylvester Stallone star in a scene from the movie “Grudge Match.” The Catholic News Service classification is L — limited adult audience, films whose problematic content many adults would find troubling. The Motion Picture Association of America rating is PG-13 — parents strongly cautioned. Some material may be inappropriate for children under 13.(CNS photo/Warner Bros.) (Dec. 23, 2013) See MOVIE REVIEW (EMBARGOED) Dec. 23, 2013.