In the years since 1976's All the President's Men, when little boys and girls wanted to morph into Woodward and Bernstein, journalists have become pariahs the public can't stand, let alone trust. So it's ballsy for starters that writer-director Rod Lurie (The Contender) has chosen to make a fierce,fire-breathing movie, laced with stinging laughs, about a D.C. reporter, Rachel Armstrong (Kate Beckinsale), who prefers to go to jail rather than rat out a source. Rachel's story blows the cover of…