I just had the very same disappointment.

The Late Great Planet Earth
Where's Hal Lindsey and drunk Orson Welles holding skulls when you need them. Now THAT was an end of the world documentary.

Mining-themed horror flicks
I find 'My Bloody Valentine' to be right on par with James L. Conway's 1982 magnum opus 'The Boogens'. I think we can all agree.