WASHINGTON (AP) — Helped by Hollywood, President Barack Obama's campaign is releasing a 17-minute documentary that portrays the president as a resolute figure who confronted a massive economic downturn and the aftermath of the nation's war on terrorism with determination and a series of tough decisions. The documentary, commissioned by the Obama campaign, provides a window into how his team is trying to sell the president's re-election bid: As a man of principle who faced daunting challenges from the moment he won election but persevered to rescue the U.S. auto industry, begin rebuilding the economy, pass health care reform and...