with p as (Select f.title, f.film_id, a.first_name, a.last_name, a.actor_id from film as f join film_actor as fa on
f.film_id = fa.film_id join actor as a
on fa.actor_id = a.actor_id
order by f.title asc),
k as (select title, film_id, first_name, last_name, actor_id, row_number() over (partition by title order by title) as a from p)
select least(a1.actor_id, a) from k