I've just been watching 'Core' on the FX channel.I remember seeing the trailers for this when it first came out, and scoffing a bit, but there are times (as witness my Irwin Allen obsession) when I'm in the mood for a bit of skiffy adventure without plucky heroes and implausible science, and this definitely fit the bill. (Giant amethyst geodes in the Earth's mantle! Diamonds the size of Cape Cod! Famous landmarks exploding! Whales!