Between 2008 and 2011 Kotlowitz worked with documentary production studio Kartemquin Films and Hoop Dreams director Steve James as a producer on the documentary The Interrupters, which debuted at the Sundance Film Festival in January 2011 to widespread critical acclaim.
Callan's induction coil also used an interrupter that consisted of a rocking wire that repeatedly dipped into a small cup of mercury (similar to the interrupters used by Charles Page).