The Avengers stars have proved themselves heroes in real life after assembling to stand with the people of Standing Rock in protest of the Dakota Access Pipeline.
Marvel stars Samuel L. Jackson, Mark Ruffalo, Chris Evans, and Chris Hemsworth have taken to social media to get their fans to sign a petition against the North Dakota pipeline construction on the Standing Rock Indian Reservation.
"Tell @POTUS to say #NoDAPL by signing the http://standwithstandingrock.net petition," Evans (Captain America) tweeted.
And his cast members went on to share the same sentiment across their own social media platforms.
Hemsworth (Thor), who has been working with Kiwi Taika Waititi on the new Thor: Ragnarok, has shared photos of people at Standing Rock, and of himself and Waititi holding a "We Stand With Standing Rock" sign.
Standing with those who are fighting to protect their sacred land and water. #nodapl #waterislife #mniwiconi @taikawaititi I would also like to take this opportunity to raise something that has been bothering me for sometime. Last New Year's Eve I was at a "Lone Ranger" themed party where some of us, myself included, wore the traditional dress of First Nations people. I was stupidly unaware of the offence this may have caused and the sensitivity around this issue. I sincerely and unreservedly apologise to all First Nations people for this thoughtless action. I now appreciate that there is a great need for a deeper understanding of the complex and extensive issues facing indigenous communities. I hope that in highlighting my own ignorance I can help in some small way.
While Jackson (Nick Fury) posted a video saying: "I'm Samuel L. Jackson, and I acknowledge the First Peoples of America. I stand for their right to clean water, and today, I stand with Standing Rock."
And Ruffalo (The Hulk) not only helped donate solar trailers to help the Standing Rock protesters - but continued to post videos to raise awareness, stating: "I acknowledge the first peoples of America...today I stand with Standing Rock".
Here I am walking up to the front line at #standingrock with one of the greatest civil rights leaders of our time @revjjackson and sister @wahleah from @nativerenewables to meet the brave #waterprotectors peacefully holding the line. Come be part of this historical moment. Come #standwithstandingrock #nodapl