MUMBAI: 3D films have generated a whopping 33% of total US box office revenues since the release of Avatar on 18 December 2009.

According to a study released by The International 3D Society (I3DS), four films namely Clash of the Titans, How to Train Your Dragon, Alice in Wonderland and Avatar – have generated $1.2 billion in US ticket sales out of a total $3.587 billion.

I3DS president Jim Chabin said, "This is truly remarkable performance in that out of 127 general market films released, just four 3D movies captured 33% of the total dollars so far this year."

The study, which was prepared for the Society by Exhibitor Relations Inc., showed that 3D Films have been #1 at the box office 10 out of 14 weeks in 2010.

For Alice in Wonderland and How to Train Your Dragon, 3D ticket sales accounted for 65% of total domestic grosses, as well as 80% of Avatar grosses to date.