There seem to be Full Screen DVDs of Argentos Version of "Dawn of the Dead" in nordic countries (norway, denmark atc.) and netherlands. (PAL) Also Japan is stated to got a Full Screen NTSC release of that Version. But there are also hints that japoan also might had a Full Screen Romero or DC Version. But found nothing specific on that.
French first DVD release of "Day of the Dead" is stated to be Full Screen.
Maybe one of that is Open Matte Release.