Four Christmases goes a long way to legitimizing my unwritten axiom – beware of movies with an all star cast. But what a cast – Robert Duval, Cissy Spacek, Mary Steenburgen, Kristin Chenoweth, John Voight, Jon Favreau and country stars Tim McGraw and Dwight Yokum all trying desperately to make a comedy out of a script that isn’t funny. Kudos to Reese Witherspoon and Vince Vaughn who despite p ...