I know I shouldn’t just flag up random Youtube videos, but there is a moment in this at just after the 4:15  mark  which is simply  awesome. Zark knows how he managed it, but somme random American guy got the cast of Back To The Future together for a Zoom meeting,  and the  result is frankly incredible. They clearly get along,  exchanging banter and stories. They even re-perform some of the script at  one point. The result is nostalgic and funny, and frankly has made  my day.