Lord of the Rings, the musical, is long. Very long. “As the March 23 opening night bears down on the cast and crew of the most expensive theatrical show of all time, several issues still need attention. Some scenes and characters don’t work quite right. The music must be tweaked. Actors are still working on their characters. And the show’s producers must fix these things while making it all go faster — far faster than the nearly five hours the show ran at its first night of previews Feb. 4.”