Diplomacy III is a 2003 comedy brickfilm by James Jannicelli. It follows a man who is repeatedly stopped when trying to take a temporarily vacated bar stool. It is the final completed film in the Diplomacy series, and the only one to not include any contribution from series co-creator, Joshua Leasure. A widescreen conversion was released on August 23, 2003 as Diplomacy III: Special Edition. The original file of the special edition has not yet been located for the archive.