Joss Whedon, the acclaimed director of “The Avengers,” gathered the stars of the superhero movie to campaign for a political ad against US presidentiable Donald Trump.

Led by Robert Downey Jr, Scarlett Johansson, and Mark Ruffalo, the video is called “Save the Day” and according to Whedon, it’s “not about attacking” Trump nor promoting Hillary for President but to encourage people to get out and vote this November when the most powerful country in the world elects their new leader.

Check it out: