The real Jan Lewan, whose life this film is based, was in attendance at the Sundance Film Festival 2017 screening at the Eccles theatre. During the cast and crew Q&A, Jan joined Jack Black onstage to perform an a capella version of the Polka Rap.
Jan Lewan:
When I was little boy in Poland, all the times, I dreaming of America. So I come, I work hard, and I climb to the highest stars.
Jan Lewan:
Oh, la, la; Ole, ole, ole, ole; O la-di, o la-la; Ole, ole, ole, ole; O la-di, o la-la Let's go!
On the first check that elderly investors Ed and Anita present to Jan, their address in the upper right-hand corner is listed as "Hazelton," PA. However, the correct spelling of the Pennsylvania town in which the movie is set is "Hazleton."
You can see and hear the real Jan Lewin and his band perform.
English