Saw this movie Sunday. Story about cave divers exploring the world's largest underwater cave system. Lots of survival drama in the story, but as a retired underwater cave explorer, I can say that the technicals in this were quite accurate, very realistic.
I noticed two flaws in the movie. 1. In a scene where they ventured into a tunnel where no one had gone before, there was a quick shot where a permanent guideline was in the scene. An obvious indication someone had been there before.
The second flaw was the survival of breathing air pockets in the ceiling. This is a legitimate survival method taught in many advanced cave diving courses but in this case, again where did this air come from? It was supposed to be a tunnel that no one had been there before. If there were air pockets in the ceiling, it meant there were recent open circuit scuba divers in that tunnel recently.
As for the 3D stuff, it was very natural and realistic looking. The most impressive aspect of the 3D was the realism of the tunnels and the restrictions.
The film was dedicated to Wes Skiles, my cave diving instructor, who died while filming for National Geographic, last summer.
I noticed two flaws in the movie. 1. In a scene where they ventured into a tunnel where no one had gone before, there was a quick shot where a permanent guideline was in the scene. An obvious indication someone had been there before.
The second flaw was the survival of breathing air pockets in the ceiling. This is a legitimate survival method taught in many advanced cave diving courses but in this case, again where did this air come from? It was supposed to be a tunnel that no one had been there before. If there were air pockets in the ceiling, it meant there were recent open circuit scuba divers in that tunnel recently. As for the 3D stuff, it was very natural and realistic looking. The most impressive aspect of the 3D was the realism of the tunnels and the restrictions.
The film was dedicated to Wes Skiles, my cave diving instructor, who died while filming for National Geographic, last summer.
