I saw part of a film on IFC or Sundance, but can't remember the name.  I think it was from Argentina.  It was about an older dance coreographer.  He falls in love with a girl whose ex-boyfriend is in the mafia.  The film was memorable because the line between reality and the show he is preparing is blurred.  At several times the camera is clearly shown in mirrors as the dancers rehearse.  Very neat lighting and sets.  Any one know this one?  Thanks.