Mad Hot Ballroom
Starring Heather Berman, Emma Therese Biegacki, Eva Carrozza, Evangelina Carrozzo, Paul Daggett, Graciela Daniele, Pierre Dulaine, Leslie Freu, Tara Devon Gallagher, Madeleine Hackney
It's a documentary and family movie, and has a rating of 7.4 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Switzerland.