I was solving the following question where I have to "List all the people who have worked with 'Art Garfunkel'."

The question is no. 16 here : <http://sqlzoo.net/wiki/More_JOIN_operations>

Edit: I wrote the following code to get the whole names list, but in vain

```
select name 
from actor left join casting on id=actorid
where movieid IN ( select movieid
from casting left join actor on id=actorid
where id IN ( select id from actor where name ='Art Garfunkel'))

```

Kindly tell me where am I going wrong?