Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE film ( film_id number, title text, studio text, director text, gross_in_dollar number )
TABLE: CREATE TABLE film_market_estimation ( estimation_id number, low_estimate number, high_estimate number, film_id number, type text, market_id number, year number )
TABLE: CREATE TABLE market ( market_id number, country text, number_cities number )

### Question ###
Return the low and high estimates for all film markets.

### Accurate SQL ###

SELECT low_estimate, high_estimate FROM film_market_estimation