Peter Brook, visionary director, in conversation with Richard Wolinsky. Peter Brook is one of the greatest theatrical directors of the twentieth century. Artistic director of the Royal Shakespeare Company for twenty years from 1962-1982, he transformed how the English speaking world looked at the plays of William Shakespeare. Now, at the age of 92, he and his collaborator Marie Helene Estienne have gone back to the Mahabharata with a short theatrical piece, “Battlefield,” which is playing at ACT’s Geary Theater through May 21st.