user: Question: Tell me the director nominated for Best Actor in a Leading Role
Columns: ['Nomination', "Actor's Name", 'Film Name', 'Director', 'Country']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Grand Prix', 'Krystyna Feldman', 'Mój Nikifor', 'Krzysztof Krauze', 'Poland']
SQL:

assistant: SELECT "Director" FROM "Table" WHERE "Nomination" = 'Best Actor in a Leading Role';