This 2017 film, directed by Maya Forbes, stars Jack Black as Jan Lewan, a charismatic Polish immigrant who becomes a beloved polka band leader in Pennsylvania. The story follows Lewan’s rise to fame and his subsequent involvement in a Ponzi scheme that ultimately leads to his downfall. The film is based on a true story, adding an intriguing layer to its comedic and dramatic elements. It also features performances by Jenny Slate and Jason Schwartzman. For those interested, the movie can be viewed on 123Movies / Movies123 for free.