I recall seeing Charlton Heston on stage at the height of his "Man For All Seasons" theatrical pomp, and he wasn't half bad. In this, however, made much earlier - he is still very much honing his theatrical skills. He portrays Mark Anthony, and the rest of an admittedly acclaimed cast stick pretty closely to the narrative of the bard's telling of the rise and fall of Caesar. That role falls to Sir John Gielgud, the…