Sparling later wrote the script ATM, a suspense thriller produced by Peter Safran and shot in Winnipeg, Manitoba in the fall of 2010 and released in 2012 by IFC Films. He also wrote Reincarnate for Producer M. Night Shyamalan, the second film of a three-part series known as The Night Chronicles.
Variety named Sparling one of "10 Screenwriters to Watch" in its November 2014 issue. Two months later, Sparling's horror-thriller film The Atticus Institute, which he both wrote and directed, was released by Anchor Bay Films. Universal Pictures will distribute the film internationally.