The mural shown at the end is still on the side of a building in Los Angeles. Two years later, it hasn't been defaced with graffiti.
Len Wein, creator of Marvel's "Wolverine," plays Vietnam photographer Len Matheson, a combination of his first name, and second name of his favorite writer, Richard Matheson.
The person who played the survivor is not a professional actor but is a professional photographer.
The photos were first shot on film, then had to be reshot digitally for easier editing.