'The Lord of the Rings: The Rings of Power': What to know about Sauron, big villain of Amazon's fantasy series

Amazon's 'The Lord of the Rings: The Rings of Power' is almost here and the excitement among JRR Tolkien fans is sky-high. 'The Lord of the Rings' trilogy, directed by Peter Jackson, set a dizzyingly high bar for any movie or show set in Middle-earth and created the sort of magic that even he, with 'The Hobbit' trilogy, could not recreate. A Tolkien adaptation that will not specifically be based on anything he wrote, 'The Rings of Power' is the most expensive production of its kind, TV or film. With five seasons, it reportedly has a budget of $1 billion, and the rights to the Middle-earth stories from the Tolkien Estate were brought for $250 million. Thus the total budget ($2.25 billion) dwarfs every movie or show ever made.