The power of a cartoonist's pen is examined in “Paul Conrad: Drawing Fire,” a profile of the Pulitzer winner, who has worked for the Denver Post and Los Angeles Times. Narrated by Tom Brokaw, the film traces the political cartoonist's career and features samples of his work, including lampoons of Presidents Nixon and Clinton, along with both Bushes; plus Conrad's recipe for success: “You have to know your subject. That requires reading, not listening to the radio or watching television.”