All the attention has been focused on the azure CGI sceptre wielded by Dr. Manhattan in "Watchmen," but that's clearly not what Reese Witherspoon is impressed with. Here she accompanies B.O.B., her costar in the upcoming DreamWorks animated fantasy, "Monsters vs. Aliens." Fantasy, indeed. True, this a movie for kids, but come on. One eye? Am I the only one who notices this? Am I on crazy pills?