A documentary that records almost two dozen leaps from the landmark bridge has generated praise and scorn for its maker. For an entire year the cameras rolled, capturing death amid the eerie fog and shifting tides. One by one, filmmaker Eric Steel documented the final moments of nearly two dozen despondent men and women, and the agonizing, four-second fall after they leaped off the Golden Gate Bridge, drawn by the span's tragic beauty. His intent, he says, was to illuminate "the darkest corner of the human mind." If he watched enough people take their own lives, he thought, he could...