skribetm,
The film was not from a scenario.
Kermit came to myself and another CM with an idea. The three of us convinced the others to spend some time with us, allowing Kermit take after take after take. We spent hours, days, weeks, then he spent more weeks editing it.
Being CM's, we used the SEA and did all the set up per what he wanted and how he wanted it,
Kermit is working on another one now, based on BoB (Battle of Britian, but it is going to be much shorter.