Bubble sorting - stuck please help

[Spector]

Hi I really need help I am stuck on an assignment where I need to sort a list that is in a .txt file by name and then by year using bubble sorting. I figured if I could get one part dont then I should be able to get the second but I can not seem to get this to work. Right now I am trying to get the date/year portion to work. Any help would be great.

  // preprocessor directives
#include <iostream> // cin, cout
#include <iomanip> // used for formatting text output
#include <fstream> // file i/o
#include <sstream> // string stream for parsing csv
#include <string> // c++ string header
#include <cstdlib> // used for atoi function (convert c-string to integer)
using namespace std;


// fixed size of library database
#define LIBRARY_SIZE 10


// function prototypes
int display_menu( void );
void load_file( struct movie [] );
void display_list( struct movie [] );
void sort_list_by_title( struct movie [] );
void sort_list_by_year( struct movie [] );
void search_list( struct movie [] );


// structure definitions
struct movie {
	string title;
	int year;
};


// main function
int main()
{
	// declare variables
	struct movie movie_library[ LIBRARY_SIZE ];
	bool exit = false;

	// main program loop
	while ( exit == false ) {
		system("cls");

		switch ( display_menu() )
		{
			case 0:
				exit = true;
				break;

			case 1:
				load_file( movie_library );
				break;

			case 2:
				display_list( movie_library );
				break;

			case 3:
				sort_list_by_title( movie_library );
				break;

			case 4:
				sort_list_by_year( movie_library );
				break;

			case 5:
				search_list( movie_library );
				break;

			default:
				cout << "Not a thing!" << endl;
				break;
		}

		system("pause");
	}

	return 0;
}


int display_menu()
{
	int choice;

	cout << "1 - Load file" << endl;
	cout << "2 - Display list" << endl;
	cout << "3 - Sort list by title" << endl;
	cout << "4 - Sort list by year" << endl;
	cout << "5 - Search list for title" << endl;
	cout << "0 - Exit" << endl;
	
	cout << endl << "> ";
	cin >> choice;

	system("cls");

	return choice;
}


void load_file( struct movie movie_library[] )
{
	fstream movie_file;
	string line, token;
	stringstream ss;

	movie_file.open("movie_library.txt", ios::in);


	// open file for reading (csv file)
	if ( movie_file.is_open() )
	{
		// parse file and initialize array of structures
		int i = 0;

		// to initialize our array of structures, we must know what column holds which values

		while ( getline(movie_file, line) ) // gets each line of file
		{
			ss = stringstream(line); // create stringstream of line to get tokens

			for ( int j = 1; getline(ss, token, ','); j++ ) // gets each token in the line
			{
				if ( j == 1 ) // first column
					movie_library[ i ].title = token;
				else if ( j == 2 ) // second column
					movie_library[ i ].year = atoi(token.c_str());
			}

			i++;
		}

		cout << "File loaded." << endl;
	}
	else
	{
		cout << "Could not load file." << endl;
	}
}


void display_list( struct movie movie_library[] )
{
	// set output to left justify
	cout.setf(ios::left);

	// use setw(30) to fix column width
	cout << setw(30) << "Title" << setw(30) << "Year" << endl << endl;

	// output values
	for ( int i = 0; i < LIBRARY_SIZE; i++ ) {
		cout << setw(30) << movie_library[i].title << setw(30) << movie_library[i].year << endl;
	}

	cout << endl;

	// unset output flags
	cout.unsetf(ios::left);
}


void sort_list_by_title( struct movie movie_library[] )
{

}

//Bubble sort function
void sort_list_by_year( struct movie movie_library[] )

{ 
    int temp;     
    for (int i = 0; i < LIBRARY_SIZE - 1; i++)       
        for (int j = 0; j < LIBRARY_SIZE - 1; j++)       
        {           
            if (year[j] > year[j+1])           
            {               
                temp = year[j]; 
                year[j] = year[j+1];
                year[j+1] = temp;
             }      
         }
 }



void search_list( struct movie movie_library[] )
{
	string search_key;
	bool found = false;

	// get search key
	cout << "Please enter the movie title you are searching for: ";
	cout << "> ";
	cin.ignore(256, '\n'); // flushes new line characters from input stream
	getline(cin, search_key);


	// implement linear search here
}

[Spector]

Ok I managed to get my sorting function complete however when I sort by title I get the first 3 titles and then wierd characters following that. any thoughts?