The first installment of American vampire series Twilight was the most counterfeited DVD over the festive period.
The film industry's anti-piracy organisation FACT seized hundreds of thousands of illegal copies of the The Twilight Series: Breaking Dawn - Part 1.
Starring Robert Pattinson, Kristen Stewart and Taylor Lautner, the film is part of a romantic fantasy series based on the novels of Stephanie Meyer.
Illegal street and market sales of the film easily outstripped sales of all other counterfeit films in Britain, highlighting its popularity.
It is the first time in four years that a Harry Potter film has failed to be the most pirated film at Christmas, according to the annual counterfeit chart.
Other fakes highly in demand include: Avengers Assemble, The Hunger Games and Brave.
FACT say they believe the case of Anton Vickerman case in May has led to a huge decline in online piracy crime.
Vickerman, from Gateshead, who operated surfthechannel.com and offered links to infringed movies, was jailed for four years.
FACT spokesman Eddy Leviten said : 'This year has been quite a turning point. People who thought they could get away with running a piracy site have found they could end up in prison.
'There have been other cases where defendants changed their pleas to guilty-partly because of this case and partly because of things we have been doing to tackle online piracy.
'There is still a problem in Britain with pirated DVDs being sold by Chinese criminals, but this form of crime is much diminished.
'We have seized more than 500,000 in the last part of the year compared with 800,000 in 2011 and more than 1million in 2010.'
1. Twilight Saga: Breaking Dawn - Part 1
2. Avengers Assemble
3. The Hunger Games
5. Ice Age: Continental Drift
6. The Amazing Spider-Man
7. The Lorax
8. Dark Knight Rises
10. Men in Black 3