At the bottom of the hole, the mostly underwater Esa-ala cave system begins, and a group of explorers is determined to lay their eyes on sights that no human being has ever seen before. Sorta.ĭeep within the strangling vegetation of a South Pacific island, a massive hole stands out like a missing section of the world. The weak plot, mediocre acting and paper-thin characterizations will likely make it a quickly forgotten movie, but the visuals almost make it worth seeing in the theaters. As a result, the film is beautiful at times, bordering on stunning, and the 3D really does make it worth the price of admission.
Having any camera near that much water is problematic, the particular issue that comes up when recording 3D, stereo space, is that the water may splash one lens, but not the other.Sanctum is a movie built entirely around the use of 3D combined with the specific cinematography used to show off the cave diving that takes center stage in the film. As mentioned, they found the physical needs of the story - working with actors on cables in dangerous situations, the heat, the cold, and of course working in and around (literally) tons of water, to be the most difficult aspect of physical production. They shot most of the film on a stage, with the underwater work done in a tank, as it was impractical for them to attempt shooting an ambitious 3D production on locations where control is limited.
The team had visited the set of Avatar and were aware of some of the challenges inherent in working with 3D, and as such, they built their sets specifically to work around said challenges. Take a look at the trailer below, and note the final moments, as Josh seeks even the smallest air pockets as he clings to life this was the most effective scene that we were able to see.Īs to the physical production, Sanctum, literally, used the same cameras that were utilized on Avatar, so they were working with 2007 technology.
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