(this is Channel 4 UK's commercial for the doc)
(this is currently an available video of the doc)
Artist JP Kelly wanders the streets of San Francisco, wondering about stencil art.
Can't embed the video in this post, so you'll have to go to his site and look for the small thumbnail for the video titled "Stencil Art?" A pink text stencil is in the thumbnail.
Stencil Archive gets a cameo, as does long time friend and stencil geek Josiah S.