PHILADELPHIA — Democrats will once again sprinkle their convention lineup on Wednesday with showbiz figures, with Star Jones, Sigourney Weaver, Lee Daniels, and Lenny Kravitz on the bill.

“Not Reality TV,” a short film produced by James Cameron and Maria Wilhelm on the tangible impacts of climate change, will also premiere at the convention.

According to a release from ClimateNexus.org, Jack Black, Don Cheadle, former California Gov. Arnold Schwarzenegger, and America Ferrera will appear in the movie, along with the voice of Hillary Clinton, New York Gov. Andrew Cuomo, and Washington Gov. Jay Inslee.

Weaver will introduce the movie and is its narrator.

In a statement, Cameron said that they made this film “to show the reality of climate change, how it’s directly affecting millions of people each day.”

Cameron said that “to save our planet, we need to mobilize like we did during World War II. The threat to our country and children is that severe.”

In the movie, Clinton will call for renewable energy resources to replace coal, natural gas, and fossil fuels.

“We can run our homes, our cars, our businesses on clean power, and create millions of jobs doing it,” Clinton says.