Elf' is 21 this Christmas and still as popular as ever. Here's how to watch and stream the Will Ferrell classic this holiday ...

“For three consecutive years, National Lampoon’s Christmas Vacation and Elf have been playing musical chairs for the top spot, proving the timeless charm of classic Christmas comedies.

"Christmas Vacation," "A Christmas Story," "Home Alone" and "Elf" were the final four movies in the bracket. This is "Christmas Vacation's" sixth victory in seven years in the 9NEWS Christmas ...