Vince Vaughn brings his patented baggy-eyed charm to the proceedings. He’s greatly helped by Paul Giamatti, who digs past the myth of his character to give us a genuine human being. Good supporting work is provided by Rachel Weisz and Miranda Richardson. But by the time we get to the genre’s obligatory wonky sleigh ride, there’s barely enough juice left in this slushy mess to make it over the next chimney
