Cole Hauser tries to keep his head above water in The Cave - and fails. Bruce Hunt made his directorial debut with this "generic slice of ho-hum horror" after serving as assistant director on The Matrix trilogy. But if this were a computer-generated reality, we would've hit ctrl alt delete after the first ten minutes. Unsurprisingly, this tale of cave divers besieged by an unknown species sank like a stone at the box office.

Shallow Water

At odds with the films' chilling premise, underwater camera team Wes Skiles and Jill Heinerth paint a picture of tranquillity in Into The Cave. Admittedly there is some great footage of their expeditions to the sub-aquatic grottos of High Springs, Florida and their efforts to record the base of a mammoth iceberg in Antarctica. "It's like swimming through the veins of Mother Earth," coos Heinerth, which is fair enough but perhaps Oprah meets the Discovery Channel is the wrong pitch for a horror flick. Although the duo talk briefly about applying their skills to feature filmmaking (using high definition video), there is otherwise scant information on development and production.

In The Pits

Special effects expert Patrick Tatopoulos goes some way to redressing the balance in Designing Evolution. He's the brain behind the fish-human hybrids who haunt the eponymous cave and which began with just a scribble on a napkin. "The scariest creatures", he says, "are creatures that have a bit of humanity to them." From there he employed a team of designers and used Darwinian principles to think about the way humans might have evolved if they'd stayed underwater. We see the prototype take shape as a maquette model, but there's very little on the CGI aspects of the film.

With Bruce Hunt a no-show and only two tangential featurettes making up the extras package, there are just too many yawning black holes in this edition of The Cave.

EXTRA FEATURES