Jenny Slate and Jack Black are starring in an indie comedy together. According to Variety, the two will star in The Polka King, which Black will also co-produce. Based on the 2009 documentary The Man Who Would be Polka King, the film tells the story of Jan Lewan, “a Pennsylvania polka sensation who shocked the polka world when it was revealed he seduced his fans into investing in a Ponzi scheme.†The film is written and directed by Maya Forbes and Wally Wolodarsky, and Jason Schwartzman, Jacki Weaver, Vanessa Bayer, and J.B Smoove round out the cast.