Here's one for your rental queue: Hit and Run, out on DVD January 13th, and UNRATED. The plot: One night, a girl driving home drunk accidentally hits a man, then for some reason beats him to death and buries him in the woods. The man, who ends up not being dead, digs himself out and starts trying to murder the girl. Then I guess we're supposed to feel scared--or at least conflicted?--that this guy is now trying to murder his attempted-murderer.
On second though, maybe don't Neflick this, but you can watch the trailer:
Not the most effective anti-drunk driving commercial I've seen, but it does caution against a very specific set of events.