Boy wizard Harry Potter and Hobbit hero Frodo Baggins will square off again for the bigger slice of this year's Christmas box office with pundits predicting a closer run contest between the two movies.

The new Potter film, 'Harry Potter and the Chamber of Secrets', opens on 15 November with the second 'Lord of the Rings' movie, 'The Two Towers', opening on 20 December.

Last year, Potter's big screen debut, 'Harry Potter and the Philosopher's Stone', took in $965m while 'Lord of the Rings: The Fellowship of the Ring' took $860m.

Industry analysts believe that the gap between the two franchises will be smaller this time around but claim that Harry Potter will triumph again.

And while the media plays up a rivalry between the two movies, they are in fact from the same corporation: both Harry Potter makers Warner Bros and 'Rings' creators New Line Cinema are owned by media giant AOL Time Warner.