​Sponsorship and Documentary

​​​​​​​​"How To Plan A Movie Murder"​​​​​​​​​​​​​​​ (documentary)
Premiered: 1964​
Synopsis: A publicity featurette on the making of the film "Strait-Jacket." Joan appears with director William Castle and writer Robert Bloch as the three discuss, satirically, the proper way to kill a person and dispose of their body. During the featurette, several of the film's key locations are shown, as well as the film's co-stars.
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Screenshots of Joan's appearance on the featurette.