Directed by Barak Goodman, drawn from the book by Dr. Siddhartha Mukherjee (who appears throughout the film), but billed prominently under the 'Ken Burns production' banner, Cancer: The Emperor of All Maladies hits its mark when succinctly and fascinatingly documenting the history of the great scourge but, and it pains me to say it, the human interest stories, though heartfelt and occasionally harrowing, belong in a different kind of docu-series. Also, extraneous commentary from medical experts tends to be redundant.
*** out of ****