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 table_24225238_1 (leading_actress VARCHAR, leading_actor VARCHAR, oscars VARCHAR)

### Question ###
Who was the leading actress in a film with Warren Beatty as the leading actor and also at the 40th Oscars?

### Accurate SQL ###

SELECT leading_actress FROM table_24225238_1 WHERE leading_actor = "Warren Beatty" AND oscars = "40th"