I find "Pirates.of.the.Caribbean.Tales.of.the.Code.Wedloc ked.BDRip.x264-DJF.mkv" in torrent, but it stuck at 96.80%.
The short was only included as a special feature in the US 15-disc 3D Blu-ray/2D Blu-ray/DVD + Digital Copy box set that includes films 1–4; and in the similar UK five-disc set.