Do you know Michael Ende's book Momo? Where a little girl meets the Men in Grey that reign a bank where you can save time? This piece of streetart reminded me of them.
Here you find that famous scene in which one of the Men in Grey tries to convince Momo to accept 'Bibi Girl, the perfect doll' to play with instead of meeting ehr friends in the real world (German only).
This is one of the few film adaptations of one of my favourite children's books, that is equally good and magical.