Let's cut to the chase: "Mark's gonna have his dick out," Robert Downey Jr. promises, speaking of Mark Ruffalo's next movie—provided that we all vote. And his co-stars in this Joss Whedon-directed SaveTheDay.vote video, which features, as Julianne Moore puts it, "just a shit-ton of famous people," all promise Ruff's nudity, too.

The Avengers director's clip is an extremely starry call to vote, one that features a montage of celebs piecemeal-delivering the line, "But you only get this many famous people together if the issue is one that truly matters to all of us—a disease, or ecological crisis, or—"enter Don Cheadle—"a racist, abusive coward who could permanently damage the fabric of our society.”

Watch above as Scarlett Johansson, James Franco, Cobie Smulders, Martin Sheen, Neil Patrick Harris, Keegan-Michael Key, Jesse Williams and more deliver the message. Another key part goes like this:

"We cannot pretend both sides are equally unfavorable. We can't say one vote doesn't matter. Your vote matters. It affects everything. Not just the presidency, but the Senate, the House, your local officials, immigration, student debt, common sense gun laws, the Supreme Court."

Whedon has filmed multiple videos for the campaign. SaveTheDay.vote explains its mission thusly:

“We are a short-form production company dedicated to the idea that voting is a necessary and heroic act. That every voice in this wonderfully diverse nation should, and must, be heard. That the only thing that can save democracy is the act that defines it. We are committed to fighting the apathy, cynicism, and honest confusion that keeps citizens from using their vote. And to reminding an increasingly out-of-touch and compromised set of representatives that they are answerable to the people they were hired to serve.”

Make sure to vote on Nov. 8. While you bide your time, watch Fuse's report from the Democratic National Convention, featuring the perspectives of Latino leaders: