Thanks again for the great suggestions.
I was thinking of having parts of the princess narration on Paul’s visions.
I’d like to avoid narration at all if possible. I think the story is clear enough if you order the scenes logically.
I suggest this sequence:
» the Prophecy
» Paul at Caladan. No film book, just introduce his training, the Atreides staff and let him have the conversation with the Duke.
» Secret Report within the Guild and the Emperor.
» Paul’s test by the reverend mother
This is very self contained and avoids introducing many places and characters at once.