"Zack contacted us after hearing about the devastation that is happening to bat populations across North America and wanted to do something," Rob Mies, executive director for the Organization for Bat Conservation, said in a statement. "[The cast and crew] took time out of their busy schedules to bring real attention to an animal that is in desperate need of support. With their help, we are able to reach millions of people about the need for bat conservation."

The cast of the movie, along with Snyder, had previously released a video to raise awareness of the organization's mission.

Sales of the houses will benefit the Save the Bats Campaign, launched in 2014 in response to a drop in the North American bat population as a result of white-nose syndrome, a fungus that easily spreads between hibernating bats and that is believed to be responsible for the deaths of millions of bats in both the U.S. and Canada since 2007.

The auction will remain open until April 4. Batman v Superman: Dawn of Justice will be in theaters March 25.