“Artistically, the stage version makes the movie seem that much more impressive. Neither a straight drama nor a traditional musical, the new production succeeds only as a dazzling spectacle. Even so, you’ll need to bone up on the books just to follow what’s going on, let alone enjoy the ride. Or better yet, get the DVDs, which for all their interminable length demonstrate how material as intractable as Tolkien’s can be made dramatically addictive.”