Given the presence of both Steve Martin and John Candy, one would expect this John Hughes comedy to be much, much funnier than it is. Certainly it's not for lack of effort on the part of its stars. Martin is an uptight businessman trying to get home from New York for the holidays. But one thing after another gets in his way--most of it having to do with Candy, a boorish but well-meaning boob who takes a liking to him. Together they travel all over the map; no matter how hard Martin tries to shake him, he can't. But Hughes's writing is never as sharp as it should be and this film winds up being only intermittently humorous. --Marshall Fine