Possible Clues:

• ''Meet John Doe'' director
• 'Meet John Doe' director Frank
• Frank who directed 'Mr. Smith Goes to Washington'
• Frank who won an Oscar for 'It Happened One Night'
• Frank who directed "Meet John Doe"
• 'Arsenic and Old Lace' director Frank
• Italian-American film director of It's a Wonderful Life, d.1991
• 'Lady for a Day' director Frank
• “Mr. Smith Goes to Washington” director
• Italian-born three-time Oscar winner