Though it's not disclosed here, both of this documentary's co-directors, as well as its music producer, are the grandsons of the film's main character Bing Russell, and the nephews of Bing's son Kurt Russell.
The sixth Netflix original documentary.
"Swannie", the left-handed catcher for the Mavericks, claims he may have been the only left-handed catcher to sign a professional baseball contract. That is not true. There were 16 left-handed catchers in the history professional baseball. The last one was Dale Long, who played in the major leagues from 1951 to 1963. He was primarily a first baseman, but did serve as catcher in two games for the Chicago Cubs in the 1958 season.