android sqlite database contraint

I have a local database to store the movie information provided by moviedb.org api. Each time the code will bulkinsert these information into my local database, but I got unique constraint error. I know its because I have set the movie id to be unique, since I thought at first I have to avoid duplication of same information.

Here is my database code :

public void onCreate(SQLiteDatabase db) {
    final String SQL_CREATE_MOVIE_TABLE = "CREATE TABLE " + MovieContract.MovieEntry.TABLE_NAME + " (" +
            MovieContract.MovieEntry._ID + " INTEGER PRIMARY KEY," +
            MovieContract.MovieEntry.COLUMN_MOVIE_ID + " INTEGER UNIQUE NOT NULL, " +
            MovieContract.MovieEntry.COLUMN_MOVIE_NAME + " TEXT NOT NULL, " +
            MovieContract.MovieEntry.COLUMN_MOVIE_GENRE + " INTEGER NOT NULL, " +
            MovieContract.MovieEntry.COLUMN_MOVIE_OVERVIEW + " TEXT NOT NULL, " +
            MovieContract.MovieEntry.COLUMN_MOVIE_RELEASE_DATE + " TEXT NOT NULL, " +
            MovieContract.MovieEntry.COLUMN_MOVIE_POSTER_PATH + " TEXT, " +
            MovieContract.MovieEntry.COLUMN_MOVIE_POPULARITY + " DOUBLE NOT NULL, " +
            MovieContract.MovieEntry.COLUMN_MOVIE_RATING + " DOUBLE NOT NULL " +
            " );";

    db.execSQL(SQL_CREATE_MOVIE_TABLE);
}

Here is my bulkinsert function:

public int bulkInsert(Uri uri, ContentValues[] values) {
        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
        final int match = sUriMatcher.match(uri);
        switch (match) {
            case MOVIE:
                db.beginTransaction();
                int returnCount = 0;
                try {
                    for (ContentValues value : values) {
                        long _id = db.insert(MovieContract.MovieEntry.TABLE_NAME, null, value);
                        if (_id != -1) {
                            returnCount++;
                        }
                    }
                    db.setTransactionSuccessful();
                } finally {
                    db.endTransaction();
                }
                getContext().getContentResolver().notifyChange(uri, null);
                return returnCount;
            default:
                return super.bulkInsert(uri, values);
        }
    }

So, I'd like to know if I remove this unique keyword, will bulkinsert still insert the duplication information or it will update automatically the information of same id? If not, what should i do to ensure that bulkinsert do nothing if it's same information, update if id already exist but other relative information changed. Thanks.