Rob Reiner helps Clinton seek more volunteers

Another sign that your campaign is going well: Poking fun at it yourself.

And if you're Hillary Clinton, you can enlist a Hollywood celebrity to do it.

On a new video posted on her campaign website, the well-known actor/director/political activist pretends to critique Clinton volunteers who knock on doors and call voters, then holds an "American Idol"-like audition for sign makers. More enthusiasm, he tells them.

The point of the pitch is that there are many different ways to volunteer for the campaign. The campaign is increasing its goal from 500,000 volunteer hours to 1 million. At the end, the announcer says, "Make Noise. Make Signs. Make History. Everyone has a role."

But it's sort of like those Saturday Night Live digital shorts that have become so popular on the web, though not quite as funny.