Full program screener:

Video_Letters_from_Prison_SCREENER.wmv (195 MB, 54 minute wmv, password required)

Video_Letters_from_Prison_SCREENER.mp4 (209 MB, 54 minute mp4, password required)

This external link advises Mac users how to view wmv files:

http://www.iskysoft.com/article/how-to-play-wmv-video-on-mac.html