Movie ticket prices rose in the last three months of 2013, boosted by pricier 3D and Imax films.
The box-office success of several 3D movies helped skew the averages upward. Alfonso Cuaron's Oscar-nominated stranded-in-space drama "Gravity" was a significant driver, generating the vast majority of its revenue from 3D.
The fourth-quarter 3D slate also included top-grossing pictures such as Disney's Hans Christian Andersen-inspired musical "Frozen" and Peter Jackson's "The Hobbit: The Desolation of Smaug."
For the full year, the average ticket price hit a record of $8.13, up 2.1% from 2012.
If those figures seem relatively cheap by Los Angeles standards, that's because the association's figures are based on data from across the country and include lower-priced matinee and children's tickets.