Here it is. The 2004 film stars Brendan Gleeson and is quintessential McDonagh -- very smart, often extremely funny and violent. Funny and offbeat as this appears to be as you begin watching, make no mistake there is a dark, Irish side to it.
Gleeson is a favorite of McConagh's, having wonderfully starred in his first feature-length movie, In Bruges, as well as his next, Seven Psychopaths. This short runs 27 minutes.
For some reason, it doesn't seem to want to embed properly on these pages, though click on the "Run" arrow and it should work. If it runs but starts mid-stream, just drag the slider back to the start. And if it doesn't play at all, you can see it here.