1. I recommend the movie as a moving story for its own sake.
2. I was struck by how skillfully the multiple handoffs occurred.
3. For storyforming, the words "memory" and "remember" appear as problematic approximately every minute, so I predict the storyform will be a top left one. And the other half of the time, coping is the main problematic task. So, I'd wager the OS will be in coping (conceptualizing) or possibly memories. These are not spoilers if you read the logline or "back of the DVD" description.