I finally found it!
I found this title available from http://www.ebay.com/itm/Sklapni-a-zast-el-m-Shut-Up-and-Shoot-Me-DVD-2005-Czech-comedy-Karel-Roden-/131568172555?hash=item1ea212fe0b
this dvd is also available from czechmovie.com
http://czechmovie.com/d/sklapni-a-zastrel-me-shut-up-and-shoot-me-dvd-1000108/