How to add films to a favorite list

I have made a film database app where the user can search for films, the search results then display in a ScrollView. The users can then click on the film results which leads onto another activity which displays the full film details. On this details page I also have a button, which I want the users to be able to click to add set that film as a favourite (which is currently set at a false boolean). The favourites will then be displayed in another activity. How would I go about doing this?

DbHelper:

public class DbHelper extends SQLiteOpenHelper {

private static final String ID = "id";
private static final String FILM = "film";
private static final String ACTOR = "actor";
private static final String ACTOR2 = "actor2";
private static final String DIRECTOR = "director";
private static final String DESCRIPTION = "description";
private static final String TABLE_NAME = "FILMTABLE";
private static final String DATABASE_NAME = "filmdatabase3";
private static final int DATABASE_VERSION = 1;
private static final boolean FAVOURITE = false;


public DbHelper(Context context) {
    super(context, DATABASE_NAME, null, DATABASE_VERSION);
}

@Override
public void onCreate(SQLiteDatabase db) {
    db.execSQL("CREATE TABLE " + TABLE_NAME + " (" +
                    ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
                    FILM + " TEXT NOT NULL, " +
                    ACTOR + " TEXT NOT NULL, " +
                    ACTOR2 + " TEXT NOT NULL, " +
                    DIRECTOR + " TEXT NOT NULL, " +
                    FAVOURITE + " BOOLEAN, " +
                    DESCRIPTION + " TEXT NOT NULL);"
    );

    Cursor countRows = db.rawQuery("SELECT count(*) FROM FILMTABLE", null);
    countRows.moveToFirst();
    int NumRows = countRows.getInt(0);
    countRows.close();

    if (NumRows == 0) {
        ContentValues values = new ContentValues();

        values.put("film", "Wolf of Wall Street");
        values.put("actor", "Leonardo Dicaprio");
        values.put("actor2", "Jonah Hill");
        values.put("director", "Martin Scorses");
        values.put("description", "True story of New York stockbroker Jordan Belfort. From the American dream to corporate greed, Belfort goes from penny stocks and righteousness to IPOs and a life of corruption in the late 80's.");
        db.insert("FILMTABLE", null, values);
        values.clear();

        values.put("film", "Captain Philips");
        values.put("actor", "Tom Hanks");
        values.put("actor2", "Catherine Keener");
        values.put("director", "Paul Greengrass");
        values.put("description", "True story, Captain Phillips is a multi-layered examination of the 2009 hijacking of the U.S. container ship Maersk Alabama by a crew of Samali pirates.");
        db.insert("FILMTABLE", null, values);
        values.clear();

    }
}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    db.execSQL("DROP TABLE IF EXISTS" + TABLE_NAME);
    onCreate(db);
    }
}

MainActivity:

public class MainActivity extends ActionBarActivity {
    public final static String FILM_ID_KEY = "com.mnt.filmapp6.FILM_ID_KEY";
    protected SQLiteDatabase db;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button btnAddFilm = (Button) findViewById(R.id.add_film);
        Button btnFavourite = (Button) findViewById(R.id.favourites);

        btnAddFilm.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent intent = new Intent(getApplicationContext(), MainActivity2.class);
                startActivity(intent);
            }
        });

        btnFavourite.setOnClickListener(new View.OnClickListener() {

                                            @Override
                                            public void onClick(View v) {
                                                Intent intent = new Intent(getApplicationContext(), MainActivity3.class);
                                                startActivity(intent);
                                            }
                                        }
        );
    }

    public void search(View v){
        EditText search = (EditText)findViewById(R.id.edtSearch);
        String searchresult = "%" + search.getText().toString() + "%";
        db = new DbHelper(this).getReadableDatabase();
        String[] column = {"*"};
        String where = "film LIKE ? OR actor LIKE ? OR actor2 LIKE ? OR director LIKE ?";
        String[] selArgs = {searchresult, searchresult, searchresult, searchresult};
        Cursor results = db.query("FILMTABLE", column, where, selArgs, null, null, null);
        film(results);
    }

    public void film (Cursor c){

        c.moveToFirst();
        int titleint = c.getColumnIndex("film");
        int id= c.getColumnIndex("id");
        String title = c.getString(titleint);
        int filmID = c.getInt(id);

        TextView txt = new TextView(getApplicationContext());
        txt.setId(filmID);
        txt.setText(title);
        txt.setTextColor(Color.BLACK);
        txt.setTextSize(16);
        txt.setClickable(true);
        txt.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(getApplicationContext(), MainActivity4.class);
                intent.putExtra(FILM_ID_KEY, String.valueOf(v.getId()));
                startActivity(intent);
            }
        });

        ScrollView scrollView = (ScrollView)findViewById(R.id.scrollView);
        scrollView.addView(txt);

    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

MainActivity4:

public class MainActivity4 extends ActionBarActivity {

String filmId;
SQLiteDatabase db;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.details);

    Intent intent = getIntent();
    filmId= intent.getStringExtra(MainActivity.FILM_ID_KEY);

    TextView txtFilm = (TextView) findViewById(R.id.txtFilm);
    TextView txtActor = (TextView) findViewById(R.id.txtActor);
    TextView txtActor2 = (TextView) findViewById(R.id.txtActor2);
    TextView txtDirector = (TextView) findViewById(R.id.txtDirector);
    TextView txtDescription = (TextView) findViewById(R.id.txtDescription);

    db = new DbHelper(this).getReadableDatabase();
    String[] column = {"*"};
    String where = "id=?";
    String[] selArgs = {filmId};
    Cursor film = db.query("FILMTABLE", column, where, selArgs, null, null, null);

    film.moveToFirst();
    txtFilm.setText(film.getString(film.getColumnIndex("film")));
    txtActor.setText(film.getString(film.getColumnIndex("actor")));
    txtActor2.setText(film.getString(film.getColumnIndex("actor2")));
    txtDirector.setText(film.getString(film.getColumnIndex("director")));
        txtDescription.setText(film.getString(film.getColumnIndex("description")));
        db.close();
    }
}