该片改编自2009年讲述波尔卡舞王扬·莱万的纪录片，一代波尔卡传奇舞王扬·莱万(布莱克饰)因欺骗粉丝投资“庞氏骗局”最终锒铛入狱。
演员: Jack Black
/ Jenny Slate
/ Jason Schwartzman
/ Jacki Weaver
/ JB Smoove
/ Willie Garson
/ Vanessa Bayer
/ 华莱士·沃洛达斯基
/ Phyllis Kay
/ Kati Salowsky
/ Rachel Annette Helson
/ Marilyn Busch
/ Bruce-Robert Serafin
/ Juani Feliz
/ Peter Ackerman
/ Alex Ziwak
/ Arthur Hiou
/ Kayla Kohla
