Здравейте хора,

Някой има ли идея защо този прост код не работи коректно? Задачата е "9.Movie" от python fundamentals/ object and classes - exercises.

class Movie:
    __watched_movies = 0
    
    def __init__(self, name, director):
        self.watched = False
        self.name = name
        self.director = director
        
    def __repr__(self):
       return (f"Movie name: {self.name}; Movie director: {self.director}. Total watched movies: {self.__watched_movies}")
 
    def change_name(self, new_name):
       self.name = new_name
            
    def change_director(self, new_director):
      self.director = new_director
        
    def watch(self):
       if not self.watched:
          self.watched = True
          self.__watched_movies += 1