This is by far one of my Fav movies of all time. While i can see why some people say it is not a Christmas movie. Always felt that the movie is a Christmas movie based on the many feelings that happen during the film. Think of how many different emotions one goes through during the season and you will see, that even though it might not have lots of scenes of Christmas.
Art: The little lights aren't twinkling. Clark: I know, Art. And thanks for noticing.