Translate the following question to SQL: What is the title and director for the movie with highest worldwide gross in the year 2000 or before?

Schema: CREATE TABLE book_club (
    book_club_id INT   PRIMARY KEY,
    Year INT,
    Author_or_Editor TEXT,
    Book_Title TEXT,
    Publisher TEXT,
    Category TEXT,
    Result TEXT,
    UNIQUE (book_club_id)
);

CREATE TABLE movie (
    movie_id INT   PRIMARY KEY,
    Title TEXT,
    Year INT,
    Director TEXT,
    Budget_million REAL,
    Gross_worldwide INT,
    UNIQUE (movie_id)
);

CREATE TABLE culture_company (
    Company_name TEXT   PRIMARY KEY,
    Type TEXT,
    Incorporated_in TEXT,
    Group_Equity_Shareholding REAL,
    book_club_id TEXT,
    movie_id TEXT,
    UNIQUE (Company_name),
    FOREIGN KEY (movie_id) REFERENCES movie(movie_id),
    FOREIGN KEY (book_club_id) REFERENCES book_club(book_club_id)
);
user
SELECT title ,  director FROM movie WHERE YEAR  <=  2000 ORDER BY gross_worldwide DESC LIMIT 1
assistant