Can anyone help me with this C code?

[dj.turkmaster]

Hello, I am computer science student in a university in Turkey. Well I need a little help with the code below.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct dvd_type{
		int price;
		char name[21];
		char genre[9];
		char director[19];
		char state[5];
	} dvd[500];
	
void add_dvd(struct dvd_type[]);

void remove_dvd(); //Skip this line
void search_dvd(); //Skip this line
void list_dvd(); //Skip this line
void edit_dvd(); //Skip this line
void hire_dvd(); //Skip this line
void quit(); //Skip this line



int main() {
	struct dvd_type dvd[500];
	char choice;
	printf(" ---HUBM DVD--- \nA:   Add new dvd\nR:   Remove dvd\nS:   Search dvd\nL:   List dvd\nE:   Edit dvd\nH:   Hire dvd\nQ:   Quit\nEnter command:");
	scanf("%c", &choice);
	if (choice == 'A'){
		add_dvd(dvd);
	}/*
	else if (choice == 'R'){
		remove_dvd();
	}
	else if (choice == 'S'){
		search_dvd();
	}
	else if (choice == 'L'){
		list_dvd();
	}
	else if (choice == 'E'){
		edit_dvd();
	}
	else if (choice == 'H'){
		hire_dvd();
	}
	else if (choice == 'Q'){
		quit();
	}*/
	else {
		printf("ERROR! Please enter one of these letters: A R S L E H Q");
	}
	
	return 0;
}
void add_dvd(struct dvd_type dvd[]){
int serial;
printf("Please enter the serial number of the dvd you want to add.\nSerial:");
scanf("%d", &serial);
while (serial>500 & serial<=0){
	printf("The serial should be between 1 and 500. Please enter a new serial");
	scanf("%d", &serial);
}	

//The problem starts here

printf("Please enter the name of the dvd:");
gets(dvd[serial].name);    // It doesn't get the name =(
printf("\nPlease enter the price of the dvd:");
scanf("%d", &dvd[serial].price);    // It gets the price, no problem
printf("Please enter the director of the dvd:");
gets(dvd[serial].director);  // It doesn't get the dircetor here =((
printf("\nPlease enter the genre of the dvd:");
gets(dvd[serial].genre);   // It gets the genre, no problem
printf("%d\n", dvd[serial].price); //These lines also works
puts(dvd[serial].genre);
}

Any idea why it doesn't get the director name and the name of the dvd?