Our eldest watched Ferngully a lot when she was little, so I absorbed quite a bit of it without wanting to. And yes, when I sat through the IMAX 3D preview a few months back, Ferngully came immediately (and naturally) to mind. I was still dying to see Avatar after that sneak peek (the 2D trailers looked like shit to me but the 3D experience was a completely different thing). And I still haven't seen it.