I have learned that ESPN are currently working on a 30 For 30 documentary covering the Von Erich family.
I've watched a few 30 For 30's in the past and they are always well-researched insight into some of sport's most unique stories.
The Von Erich subject matter will surely make for interesting viewing so I cannot wait until the episode is premiered.
The last time the Von Erich, and World Class Championship Wrestling, story was told in documentary form was a number of years ago in two films chronicling the rise and fall of the wrestling territory.
WWE made The Tiumph and Tragedy of World Class Championship Wrestling whilst an independent company produced Heroes of World Class.
Both titles come recommended. However - f I were to suggest you purchase either - the latter would win by a nose.