‘The Avengers’ stars Robert Downey Jr, Scarlett Johansson, Mark Ruffalo and more in PSA to stop Donald Trump from winning US election [VIDEOS]

“The Avengers” want Americans to vote in the coming presidential election. Filmmaker Joss Whedon has assembled some of the stars of the Marvel superhero flick – Robert Downey Jr, Scarlett Johansson, Mark Ruffalo, Don Cheadle, Colbie Smulders and Clark Gregg – and a lot more celebrities to star in his organisation’s latest project.

On Wednesday, Whedon, who deleted his account last year, joined Twitter once again to release the 3-minute video “Important,” featuring some of “The Avengers” cast and various other celebrities, including Nathan Fillion, Keegan-Michael Key, Yvette Nicole Brown, Leslie Odom Jr, Julianne Moore, James Franco, Jesse Williams, Taran Killam, Neil Patrick Harris and Martin Sheen. The message of the public service announcement (PSA) is simple: Register to vote on Nov. 8.

“You may think that you’re not important, but that’s not true,” the stars say in the video. “The only we can prove that to you is by having lots of famous people.”

And true enough, the self-aware PSA features lots of famous people, even not-so-famous ones whom viewers have “seen somewhere.” There were also ordinary people mixed in the group to drive the message home with their “unpolished sincerity.”

It does not mention either Democratic candidate Hillary Clinton or Republican nominee Donald Trump’s names, but it is clear whom the stars don’t want people to vote for.

“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 a racist, abusive coward who could permanently damage the fabric of our society. Do the math. Do we really want to give nuclear weapons to a man whose signature move is firing things?” they say, referring to Trump.

To reiterate the message, the stars appeal to the viewers to register and vote. “See this isn’t just an election; it’s a tipping point.”

And if saving US still won’t convince people to vote on the US Election Day, then maybe Ruffalo’s nude scene would.

“If you do vote and help protect this country from fear and ignorance, Mark will do a nude scene in his next movie,” a confused Ruffalo reads his line.

“Mark Ruffalo will do a nude scene. Mark’s gonna have his d--- out. Fully Monty,” the others confirm. “Make Mark be naked by making your mark on November eighth.”

Watch ‘The Avengers’ and other stars ask people to ‘Save the Day’

Whedon, who is a proud Clinton supporter, told Buzzfeed how he assembled some of his famous friends to appear in the PSA.

“There is almost nobody that I wouldn’t approach to say, ‘If you can pitch in, do it now,’” he said. “It was pretty much the same spiel to everybody: ‘Doing a voting PSA to help get out the vote and stop orange Muppet Hitler.’”

The TV and film writer/director said that although there was at least one person apprehensive about alienating half of their fan base because of the video’s partisan message, nobody backed out. “In general, everyone was very comfortable with what we were doing,” he added.

Watch the behind the scenes of Save the Day ‘Important’ PSA