Good but NOT realistic
As far as reality goes, it doesn't do much - it's not a real story. The improbable WWII story of the "Dirty Dozen" is that a bunch of military convicts gets recruited into a special unit that can use their "skills" (which are not available from anyone else in the world). It's definately worth watching - a pretty good "down in the dirt and mud" NTSC VHS movie (re-issued in 2001). Don't even bother with any type of meaning to the story and don't feel bad if you miss the message - there isn't any. It's just pure war entertainment with an all-star cast - and quite exciting. Note that this review is made with no knowledge as to who the potential seller may be.