Deliberate mistake: The music in the 50s wasn't, by far, the Shakira pop and hiphop style that the people dance to in the movie.
Dirty Dancing: Havana Nights (2004)
1 deliberate mistake - chronological order
Directed by: Guy Ferland
Starring: Diego Luna, Romola Garai, Sela Ward, John Slattery
Continuity mistake: In the scene where Katey and James are in his car after leaving La Rosa Negra, James locks the car door on the passenger side but after he makes a move at her, Katey opens the door without unlocking it.
Javier Suarez: You felt the sudden urge for Cuban music?
Katey Miller: The van left without me, I've been walking for an hour.
Javier Suarez: I can walk you back.
Katey Miller: Oh, no, you don't have to do that.
Javier Suarez: Oh, yeah, you're right. You'll find your way sooner or later. Maybe in a week or a month. Let me just say goodbye.
Answer: Because they were singing revolutionary songs. And at that time was strictly forbidden.