CS50 Pset 7 13.sql, I can't solve it, nested sqlite3 database

Question

DataBase movies.db

tables

directors (movie_id, person_id)

movies (id, title, year)

people

Answer 1

I did it without using any Join, just nesting the conditions.

SELECT people.name FROM people
WHERE people.id IN 
(
    SELECT stars.person_id FROM stars
    WHERE stars.movie_id IN 
    (
        SELECT stars.movie_id FROM stars
        WHERE stars.person_id IN
        (
            SELECT people.id FROM people
            WHERE people.name = "Kevin Bacon" AND 
            people.birth = 1958
        )
    )
)
AND people.name != "Kevin Bacon" 
GROUP BY people.name