Get 3-D sneak peek at James Cameron's cave-diving film

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TEMPE, Ariz. -- Universal is releasing a new film called "Sanctum." The James Cameron thriller about cave diving is inspired by true events.

To promote the film, Universal is sending a bus across the country that will show about 10 minutes of 3-D footage from the film. It is a free public attraction that they are calling the Sanctum Traveling Experience.

The Traveling Experience will be at Tempe Marketplace today from 1 p.m. to 6 p.m. and tomorrow on the US Airways plaza between 4:30 p.m. and 7 p.m.