It's a sad irony that Adrien Brody is more famous for his emotional Oscar speech than for the shattering performance that earned him this year's prize for Best Actor. Brody cuts deep -- even when the script doesn't -- into the true story of a young pianist, Wladyslaw Szpilman, a Polish Jew who survived the Nazi invasion of Warsaw by hiding out. A bonus feature, "The Story of Survival," tells how Pianist director Roman Polanski, also an Oscar winner, himself escaped the Nazis as a child in…