It's not graffiti. It's Pixo. It came from Brazil. Documentary by Joao Weiner and Roberto Oliveira.
Here’s some video footage about Pixacao, the distinctive form of graffiti found in São Paulo, Brazil. It's a style of graffiti known for its simple, angular lines. The video shows these pixação artists climbing high rise buildings to paint their Pixos. The video is part of Joao Weiner and Roberto Oliveira’s documentary “Pixo”.
After the Jump another video by el Sindicato Paralelo: