Hobbit fans in New Zealand for early screenings of the film claim its high frame rate made them feel sick.
The Hobbit: An Unexpected Journey screened at twice the normal number of frames per second, making it the first major Hollywood movie to be shot at such a high speed.
The move was much talked about leading up to last week's premiere, with director Peter Jackson guaranteeing "enhanced clarity and smoothness".
But not everyone was impressed with the new technology.
Some viewers told the Sunday Times that the filming technique made them nauseous and dizzy, with some even complaining of migraines.