From CBSSports.com

Michael Jordan had to approve before any of the footage from his final season in the NBA could be used.  This article goes through process and how it took over 20 years for this footage of Michael Jordan’s last season to finally be shown.  Below is the link to connect to this article on CBSSports.com.  

https://www.cbssports.com/nba/news/michael-jordan-signed-off-on-the-last-dance-documentary-thanks-to-lebron-james-allen-iverson-adam-silver/