The once-lost 1962 anti-pornography film Pages of Death, considered the "Reefer Madness" of porn.

https://www.youtube.com/watch?v=XjBA00p0YuY

Considered a "lost film" as of early 2016, a faded 16mm print was discovered in the Moving Image collection at the Oregon Historical Society in 2015. Created in 1962 the film was recently ranked #14 in Gambit Magazine’s list of 15 Films Lost to Time.