Give this one a second to lure you in. Seems a little maudlin at first, but I was diggin it about half way in. Tho of course I am a sucker for street messages.
Deserted After Dark gives these details:
This short film, called “Mankind Is No Island” was shot completely on a cellphone by Jason van Genderen, and won top prize at the world’s largest short-film festival, Tropfest.
Thanks to Stephanie for the link!