Thomas Doherty and Juliet Doherty are not related.
Phillip Chbeeb, one of the Free Dancers was a contestant on So You Think You Can Dance in 2010, judged by Nigel Lythgoe, the Theatre Patron who gives Charlie his ticket.
In France, High Strung (2016) was already titled "Free Dance", thus this film was titled "Free Dance 2".
This sequel to High Strung (2016) is also written, produced, and directed by Michael Damien and Janeen Damien.
Thomas Doherty appears in the Disney's Descendants Series which is directed by High School Musical's Kenny Ortega.