He has worked with a number of prominent graffiti and street artists including Banksy, Barry McGee, Os Gemeos, Shepard Fairey, and Mister Cartoon.
[2][3] In 2013, Gastman produced The Legend of Cool "Disco" Dan, a documentary film that premiered at the AFI Theater in Silver Spring, Maryland accompanied by the book Pump Me Up: DC Subculture of the 1980s and an exhibit of the same name at the Corcoran Gallery of Art.
[4] In 2021 he directed Rolling Like Thunder, a documentary film about freight train graffiti produced by Mass Appeal and released on Showtime.
The exhibition featured a wide-range of mediums in separate installations by artists or 'crews' and was held in the 40,00 square foot Geffen building, off-site from MOCA.
[16] Beyond the Streets began publishing books in 2018, producing artist monographs such as those of Jason REVOK, fine art hardcovers like Beastie Boys Paul's Boutique, Spray Nation by Martha Cooper, the limited-edition Praesentia by Felipe Pantone, and Born In The Bronx: A Visual Record of The Early Days of Hip Hop by Joe Conzo, Jr.; as well as zines from the likes of The Perez Bros., Lady Aiko, and Ian Reid, among others.