The Hobbit: An Unexpected Journey holds firm at the top of the UK box office this week despite very strong competition from tsunami film The Impossible.

With a 3 day weekend gross of £4,075,781 The Hobbit stays put at the top of the UK box office for an amazing fourth week. The total gross for the Middle �Earth film is now just shy of £45 million, and is the 30th top film in the UK.

The Impossible is the highest new film at 2, starring Ewan McGregor and Naomi Watts it's the true story of a family lost in the Boxing Day tsunami that happened in Thailand in 2004. With little publicity until recent weeks the film took a decent £ 4,034,470 over the weekend.

This time last year Tom Cruise was still at the top with Mission: Impossible Ghost Protocol and Oscar winning film The Iron Lady about Margaret Thatcher's reign as British Prime Minister was the highest new entry at 3.

Five years ago I am legend was still at the top of the box office, and you had to look as far down as number 10 to get the highest new entry, Lust Caution, an Ang Lee direct film starring Tony Leung Chiu Wai.

Ten Years ago The Lord of the Rings: The Two Towers wouldn't shift from the top of the box office which Star Trek Nemesis was the highest new film at 2.

Fifteen years ago Paul Verhoevens Starship Troopers was the top film in the country.