Excerpt - In the most surreal and, Santa help us, only truly interesting moment in "Fred Claus," none other than former presidential sibling Roger Clinton stands up and delivers a heartfelt confession about the pain of living in a more accomplished brother's shadow. As Clinton blubbers about love and devotion and "being there" for his kin, it all eerily comes into focus: The bulbous nose, the ruddy skin, the faint Ozarkian drawl … this guy really IS a mutant version of Bill Clinton! And, then, another revelation: He genuinely IS messed-up! And that's all the pathos or humor you're likely...