written and directed by Andreas Ewels, Norbert Porta ; production ZDF, Alexandre Kegler, Sigrid Beck ; produced by Norbert Porta Sciencedocu on behalf of ZDF
Bal Maiden films in association with Public Interest Pictures and Peer Review Films presents a film by Amie Williams ; executive producers, Margery Tabankin, William B. Hirsch, Scott Verges and Doug Pray ; producer, Kathryn Takis ; director, Amie Williams