The latest episode of Maurizio's great podcast is a fascinating talk about the behind the scenes work involved in adapting Williams' score to the Live To Projection concert format, and is a great listen from start to end.
https://thelegacyofjohnwilliams.com/2022/04/28/superman-in-concert-podcast-special-pt2/
Speaking of the end, Mike drops the information in the thread title as they are signing off.
Speculate away!
Yes, that is from well before the sheet music was available. Now that it is, the album breakdown has been figured out
01 Catch Me If You Can
Closing In w/ Insert and New Ending
02 The Float
0:00-0:45 = 7M4 Front Extension
0:45-3:43 = 7M4 Frank and Carl [bars 11-28,41-169]
3:43-4:23 = 7M4 End Extension [bars 1-34]
4:34-end = 7M4 Frank and Carl [bars 191-192,195-end]
04 Recollections
Reflections
05 The Airport Scene