Ugly Melanie
Vilaine (original)
This is the story of too nice girl who one day decides to become evil. And who will find out it is not so easy to do wrong when you have always been nice.
Starring Marilou Berry, Frédérique Bel, Chantal Lauby, Pierre-François Martin-Laval, Joséphine de Meaux, Liliane Rovère, Eric Laugérias, Gil Alma, Jean-Claude Dreyfus, Thomas Ngijol
It's a comedy movie, and has a rating of 5.5 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from Argentina.