Murderous George

(It's not really Werner Hertzog, of course, but it is a clever and very funny parody. To appreciate it properly, you probably need to have seen his documentary Grizzly Man, in which Hertzog contrasts his view of nature as grim, unreasoning and full of horror with the unbalanced optimism of the self-styled grizzly man, Timothy Treadwell, who was eaten by one of the bears he mistakenly believed he was protecting. Come to think of it, this isn't so much a parody: it's a hard SF version of the children's story.)