Wonderful! And greatly needed now
I remember the Broadway revival with Zero Mostel, but glad they they cast someone else for the film. Although Zero Mostel was rightfully a big star on Broadway.
The PBS documentary is about two hours long and covers the pre New York tryout, they terror that Director Jerry Robbins caused. And the lines outside the theater for tickets when the rave reviews came out.
Robbins also directed West Side Story, Peter Pan and Gypsy
Added: at the performance I saw Zero Mostel made believe he could not remember his daughters names.