I have just listened to this and its interesting how they compact the story down into not quite 12 minutes. The complete abandonment of the Kirk/Decker plotline is interesting, they simply make Admiral Kirk the leader and Decker the XO.
However, I think the most interesting change is the use of a still from the abandoned 'memory wall' sequence to illustrate Spock's mind meld with V'ger. They have Kirk and Spock leave the Enterprise together on their spacewalk.
Oh, and McCoy gets only one line in the entire thing.
It's worth a listen/look on youtube if you're also obsessed with TMP.
However, I think the most interesting change is the use of a still from the abandoned 'memory wall' sequence to illustrate Spock's mind meld with V'ger. They have Kirk and Spock leave the Enterprise together on their spacewalk.
Oh, and McCoy gets only one line in the entire thing.
It's worth a listen/look on youtube if you're also obsessed with TMP.