Well, now it's a campaign promise: If you got to SavetheDay.Vote and register to vote for the 2016 presidential election, then vote on November 8, Mark Ruffalo will do a nude scene in his next movie. Or, as his Marvel "Avengers" co-stars put it:

Robert Downey Jr: "Mark's gonna have his d*ck out."

Scarlett Johansson: "Full Markie."

Color us sold! "Avengers" director Joss Whedon -- also the guy behind "Firefly," "Agents of S.H.I.E.L.D," "Buffy," etc -- brought a "sh-t-ton" of his actors together for this "Save the Day" video begging people to vote on Tuesday, November 8.

There's a lot of Marvel talent in the video, among others, including Robert Downey Jr., Scarlett Johansson, Mark Ruffalo, Don Cheadle, Clark Gregg, Cobie Smulders, Julianne Moore, James Franco, Stanley Tucci, Nathan Fillion, Martin Sheen, Keegan-Michael Key, Rosie Perez, Neil Patrick Harris, Yvette Nicole Brown, and more.

RDJ, anchors the video because he is "the most popular or memorable actor." Not sure why poor Mark Ruffalo ended up the one tagged for a nude scene, but ... no complaints if it happens.

Mark Ruffalo: "No, no, no. What, nobody talked about... They should just vote 'cause it matters, you know. Don't you think?"

Nah, we need incentive.

Check it out:Because Internet commenters hate being told what to do by the celebrities they made rich by watching their movies, many are saying this video has just inspired them to get out and vote for Trump. Hey, as long as you're voting!

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