Table: four_oscar_noms
Columns: year
oscars
noms
wins
film
leading_actor
leading_actress
supporting_actor
supporting_actress

Question: Who was the leading actor in the film with a supporting actor named Cecil Kellaway?
SQL: SELECT "leading_actor" FROM four_oscar_noms WHERE "supporting_actor" = 'Cecil Kellaway'

Question: Who was the supporting actress in "For Whom the Bell Tolls"?
SQL: SELECT "supporting_actress" FROM four_oscar_noms WHERE "film" = 'For Whom the Bell Tolls'

Question: Who was the supporting actress in a film with Diane Keaton as the leading actress?
SQL: SELECT "supporting_actress" FROM four_oscar_noms WHERE "leading_actress" = 'Diane Keaton'

Question: Who was the leading actress in a film with Warren Beatty as the leading actor and also at the 40th Oscars?
SQL: SELECT "leading_actress" FROM four_oscar_noms WHERE "leading_actor" = 'Warren Beatty' AND "oscars" = '40th'

Question: Which film had Charles Bickford as supporting actor?
SQL: SELECT "film" FROM four_oscar_noms WHERE "supporting_actor" = 'Charles Bickford'

Question: Who was the supporting actress in 1943?
SQL: SELECT "supporting_actress" FROM four_oscar_noms WHERE "year" = 1943