In addition to the musicians who contributed to the band's prior release You Forgot It in People, new contributors on Broken Social Scene include k-os, Jason Tait (The Weakerthans) and Murray Lightburn (The Dears).

Kaslik attended the Etobicoke School of the Arts with members of the band and helped them on their first tour of Canada and the United States.

Although Kaslik stated "It's definitely based on a world that I know", she brushed off claims that the connection goes very deep, saying "it would be mistaken and scurrilous to try to identify individual people".

[15] Despite the EP having a limited release, two music videos were made for the songs, "Her Disappearing Theme" and "Major Label Debut (Fast)".

The instrumental introduction to "7/4 (Shoreline)" is used as the theme music for CBC Radio One's Mainstreet programme broadcast on CBHA in Halifax, Nova Scotia.