I went to see Sanctum yesterday, spelunking on a grand scale. The visuals were terrific, most of them; the 3D did a good job of catching the enormousness of the caverns. But even though the story is based on a true event, the script is just one cliché after another. Tiresome and predictable. And it's ironic that a movie built on visual clarity should resort to swooping cameras and quick cuts whenever it became difficult to show the characters' orientation to one another and to the cave's passages they were going through.

I'd say skip this one.