MSNBC presented this documentary last Saturday, about the making of the 1976 movie about Watergate, starring Robert Redford and Dustin Hoffman. It was full of bits of behind-the-scenes information, featuring new interviews not only with the movie’s two stars, but with the journalists they portrayed, Bob Woodward and Carl Bernstein, as well as former Washington Post editor Ben Bradlee. That documentary is repeated tonight, which makes it, if you think about it, All the President&rsquo