Disco (2008) on Netflix

Plot summary

Didier Travolta is a forty-year-old disco enthusiast with no job who lives with his mother in Le Havre. He has a son in Britain he has not seen for a while, and the boy's mother will not send him over for the holidays unless Didier can offer a real vacation rather than evenings in the bars of the port city. Didier has no money. His friend Jackson runs a dance contest with a vacation to Australia for two as the prize, and winning it is the only way Didier can see his son. Didier persuades Walter and Neuneuil, his former dancing partners, to put the once-famous Bee Kings back on the dancefloor. The group needs a dance coach to get ready for the competition.