James Cameron has returned to the spotlight. The Avatar panel just finished at the San Diego Comic Con and CB’s own Katey Rich should have a full report on everything she saw there soon. In the meantime, we wanted to let you know to mark your calendars. Circle August 21st. Write the word “Avatar” on it.

Cameron announced during the Avatar panel that on August 21st, they’re planning an unprecedented event. Rather than simply teasing his movie with the usual assortment of internet trailers and television spots, they’re inviting everyone into IMAX theaters all over the world where a full fifteen minutes of Avatar will be shown to hungry audiences in 3D. This isn’t just some cool press event happening in New York or LA, it’ll play on that day in IMAX theaters all over the world. Prepare to have your mind blown.

The first trailer for the Avatar video game will also debut that day. Maybe it’ll be good, but there’s no chance it’ll be as good as whatever it is that Cameron has to show us. See you at an IMAX theater, on August 21st for Avatar Day.

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