Bah!
Well it was only a matter of time.
I sat through the Avatar credits waiting to see if Cameron, know recidivist plagiarizer of other people's work and loud complainer C/W crocodile tears of those times he feels it has been done to him, had so much as given a "thank you" to Roger Dean, so obviously the inspiration (if not the direct source) of those flying mountains and "frozen loops" of rock that made the picture so special, but wouldn't you know it, not a word.
When we got home my wife, gorblesser, said "I've never seen anything like that scenery."
"I have" I said, and went to dig out one of my Roger Dean artwork books (Magnetic Storm, I think)
"Look familiar?" I said as I held up one showing the floating boulder field.
"Is that from the movie?" she asked.
"No. It was painted about ten years ago. Here, look at this one" (the loops of rock).
"When was that one painted?" she asked, eyes wide at the near perfect match with the movie scenery.
"Nearly two decades ago. It was used on a Yes album cover in the early 90s."
"Maybe the artist did the movie scenes" she opined.
"If he did, he didn't take the credit. No, I think we are seeing the return of James "other people's work is in my public domain" Cameron here".
I'm looking at a picture on a Dean calendar right now (an old calendar) which has those flying boulders soaring majestically in the mist. No doubt Cameron actually conceptualized it, then Dean read his mind from the past in order to paint it.
Stick it to the plagiarist bastard, Roger. I'm on your side, as will be anyone who looks at the evidence. Even the colors match.
Plus, he's a repeat offender.