MoviesReviewGETService(path: "all.json", parameters: ["api-key":"sample-key"])
    .executeTask()

results = realm.objects(MovieReview)

notificationToken = results.addNotificationBlock { [weak self] (changes: RealmCollectionChange) in
    guard let _self = self else { return }
    switch changes {
    case .Initial, .Update(_, deletions: _, insertions: _, modifications: _):
        _self.results = _self.realm.objects(MovieReview)
        _self.tableView.reloadData()
    default:
        break
    }
}