From the Rankin-Bass Return of the King cartoon:
This is a good adaptation of on of the most riveting passages in the books, and there’s a subtle dig at MacBeth in it. I don’t know if it’s true, but I’ve heard for years that Tolkien hated the way Shakespeare used prophecies in MacBeth. I’ll have a Tolkien post here later today and another at Sourcerer. I’ll also have one at The Writing Catalog to show anyone who is interested how I planned my Tolkien series.