bool isBigger(struct filmList* current, struct filmList* previous, int option) {
	int flag = 0, i = 0;
	switch (option) {
	case 1:
		while (current->title[i] != '\0') {
			current->title[i] = tolower(current->title[i]);
			i++;
		}
		i = 0;
		while (previous->title[i] != '\0') {
			previous->title[i] = tolower(previous->title[i]);
			i++;
		}
		if ((strcmp(current->title, previous->title)) < 0) {
			flag = 1;
		}
		break;
	case 2:
		while (current->genre[i] != '\0') {
			current->genre[i] = tolower(current->genre[i]);
			i++;
		}
		i = 0;
		while (previous->genre != '\0') {
			previous->genre[i] = tolower(previous->genre[i]);
			i++;
		}
		if ((strcmp(current->genre, previous->genre)) < 0) {
			flag = 1;
		}
		break;
	case 3:
		if(current->duration < previous->duration) flag = 1;
		break;
	case 4:
		if (current->date < previous->date) flag = 1;
		break;
	}
	if (!flag) return false;
	return true;
}