private void LogMovieList(string operation, IEnumerable <IMovie> movies)
        {
            if (CanLog)
            {
                string list = operation;

                foreach (var movie in movies)
                {
                    list += $"{movie.Abbreviation} ${movie.Earnings:N0}|";
                }

                _logger?.WriteLine(list);
                _logger?.WriteLine(_elapsed.FormatRemaining());
            }
        }