Adversity remade into triumph. It is, of course, the oldest plot in the ''Inspirational Film" book, that fat tome on the shelf beside ''How to Tap Sap." The familiar arc goes like this: Give a person a crippling illness. Throw him into a spiral of self-pity. Evolve him into a noble hero. Put big lumps in viewers' throats.
Too often in entertainment, suffering is reduced to an easy lesson in character building. It gets cut down into dime-store uplift. But when the pain-to-gain genre is done right, and HBO's FDR drama ''Warm Springs" is right enough, it can isolate and honor the redemptive potential of hard times. It can almost make you feel that there's some virtue in grief, despite the reality once named by poet Randall Jarrell, who wrote, ''Pain comes from the darkness / And we call it wisdom. It is pain."