the long wait

I was in the library at lunchtime, prolonging the inevitable return to work, and I overheard the following exchange, between a youngish dad and his son, who can't have been more than three years old. The father had just picked up a DVD from the rack.

Dad (wistfully): This will be a fantastic film for when you're a bit older.
Son (wrapped round Dad's legs): What is it?

I crane my head and see that the father is holding 'Blade Runner: The Director's Cut'.

Dad (even more wistfully. No, reverentially): It's set in the future...

I walked back to work.