/// <summary>
        ///     Добавить сезоны
        /// </summary>
        public void AddSeasons()
        {
            var number     = Seasons.Count;
            var lastNumber = Seasons.LastOrDefault()?.Number ?? 0;
            var seasons    = new List <Season>();

            for (var i = 0; i < AddingSeasonValue; i++)
            {
                if (number > 0 && number != lastNumber)
                {
                    for (var j = 1; j <= lastNumber; j++)
                    {
                        if (Seasons.Any(s => s.Number == j) ||
                            seasons.Any(s => s.Number == j))
                        {
                            continue;
                        }

                        seasons.Add(new Season
                        {
                            Number = j,
                            Film   = CurrentFilm
                        });
                        lastNumber++;
                        break;
                    }

                    continue;
                }

                seasons.Add(new Season
                {
                    Number = ++number,
                    Film   = CurrentFilm
                });

                lastNumber++;
            }

            InsertEntityListToDb(seasons);
            Seasons        = new BindableCollection <Season>(CurrentFilm.Seasons);
            SelectedSeason = Seasons.Last();
        }