i like graffiti. i think it looks cool. i think it's cool kids are learning to draw and paint rather than sitting around doing speed.
people watch action movies because they want a rush. but an action movie will leave the watcher unsatisfied. after all, the movie was fake, and the watcher was just a spectator. going out an doing graffiti gives people a real rush. there is a real danger, an there is active participation. like many extreme sports, graffiti can be addictive.
graffiti allows individuals to have a direct effect on what their neighborhood and surroundings look like. it's not some bureaucratic city planner or some capitalist who can afford to put up advertisements.

A list of 69 films compiled on Letterboxd, including Who Is Bozo Texino? (2006), Wall Writers (2016), Sly Artistic City (2010), Style Wars (1983) and Kings of Broadway (1998). About this list: This is a list of documentaries that attempt to educate and inform on various aspects of street art and graffiti. Links posted in the notes were possible. Every Streaming Service for TV, Sports, Documentaries, Movies, and More All the Movies Getting Early Digital Releases The Best Feel-Good Shows to Watch Right Now on Netflix, Hulu, Amazon, HBO,.

really though, just go read this.
oh, and there's also this:

Area 08graffiti Movies & Documentaries 2018

Area 08graffiti Movies & Documentaries 2017

which makes it all worthwhile.