/// <summary>
/// The <c>GetMovie()</c> method receives a certain movie's id as a parameter from the presenter and executes the
/// repository's method which is responsible of getting a certain movie from the database by its id.
/// </summary>
/// <param name="id">This is the id of the movie.</param>
/// <returns>This method returns a tuple from a movie object and its genre in words (string).</returns>
public Tuple <Movie, string> GetMovie(int id)
{
return(movie_repo.GetMovie(id));
}