Boing Boing contains this entry about a 1 minute "ad" protesting the war. (It was our imperial excursion into Vietnam when the video was made.) Boing Boing: Baby Peace: Randal Kleiser's 35 year old antiwar PSA
Take a look at the video. It's worth it. The film was directed by Randal Kleiser with voice over by John Voight.
Here are links to the video.
Link to quicktime, Link to WMV.