Our Final Film Score Project refers to a song entitled "Two Sisters" originally composed, performed, and demoed by Regina Spektor, Levon Vincent, and Eric Helmuth. The song was recorded in 2000 when Regina, Levon, and Eric were attending university at SUNY Purchase as a part of their "final film score project" to record a song in the public domain. The actual name of the song is unknown, though fans have landed on "Two Sisters" due to the lyrics of the song. An alternate name proposed for the song is "Twa Sisters", as the lyrical content of the song centers around the traditional folk tale "The Twa Sisters".

JohnnyC, a user from brümstix, the original Regina Spektor fan forums, noted that members from the community may have received the song from Levon Vincent, after which it was shared on brümstix.

The origination date of the song was confirmed by Levon, who noted that he and Regina "recorded a song from public domain together, circa 2000".