The cast of DC's upcoming "Justice League" movie have joined together in opposition to the controversial Dakota Access Pipeline. In a video released on the Change.org YouTube channel on Tuesday, the five actors -- Ben Affleck, Ray Fisher, Gal Gadot, Jason Momoa and Ezra Miller -- expressed their support for the protestors:

"As a gang of Earth defenders, we want to send a big shoutout to the Oceti Sakowin and those that stand with them in opposing the Dakota Access Pipeline."

If you haven't been following the story closely, members of the Standing Rock Sioux Tribe in North Dakota have protested the construction of an oil pipeline close to their reservation. The proposed pipeline would transport crude from an oil-rich part of North Dakota to Illinois, passing through South Dakota and Iowa along the way. Proponents of the pipeline stress that the plan would bring money to state and local governments, while simultaneously reducing the United States' dependence on foreign energy sources.

The Standing Rock Sioux Tribe asserts that in addition to encroaching upon their ancient prayer and burial sites, the pipeline is unsafe and that leakage will poison the nearby Missouri River and threaten the health of the entire local ecosystem.

Though the US Army Corps of Engineers approved the pipeline project, the Standing Rock Sioux Tribe asked a U.S. District Court for a temporary restraining order against Dakota Access on Sunday, stating that they were not adequately consulted on the pipeline construction and potential hazards. On Tuesday, U.S. Judge James Boasberg granted part of the restraining order, stating that he would make a decision on Friday on the entirety of the Tribe's challenge to the pipeline. If successful, the U.S. Army Corps of Engineers would have to withdraw their permits for the pipeline construction.

The Justice League actors aren't the only ones who have voiced support for the Standing Rock Sioux. Susan Sarandon, Rosario Dawson, Leonardo DiCaprio, and several others have continued to speak out, expressing their frustration with the lack of media coverage.