Are you at risk for heart disease? If so, check out this informative documentary exploring America's "number one killer." If you're not sure, the program could be even more invaluable, as it lays out the issues surrounding heart disease and provides a wealth of advice and strategies designed to help those who know they are at risk of a sudden heart attack...and those who don't know. Larry King leads a post-show discussion. 116 min. Soundtracks: English, DVS; interview; more.