In the two-minute video, titled 'The Insurance', the Smith family's Chris (Emile Hirsch) and Ansel (Thomas Haden Church) get into a heated debate over an insurance policy payout.
The thriller is directed by Oscar-winning Exorcist helmer William Friedkin and features Thomas Haden Church, Gina Gershon, Emile Hirsch and Juno Temple among its supporting cast.
Friedkin recently told Digital Spy that the rumoured TV remake of The Exorcist will not happen.
"It's a load of b*llocks," he said. "There's no television series of The Exorcist planned. It would be ludicrous. An exorcist a week?"
Killer Joe opens in UK cinemas on June 29 and July 27 in the US for a limited run.