Correlated subquries

[Patrice Patrice]

Hi everyone.
Here I have a table name movies with this schema

movies(title,year, length, genre, studioName, producerCertN)

I want to find titles that have been used for two or more movies.
I have used this query

SELECT title FROM movies Old WHERE year<ANY(SELECT year FROM movies WHERE title=Old.title);

This works well but my teacher has asked me to rewrite the query without any subqueries. Is there someone who can show me how i can do this? Thanks in advance.