Possible Clues:

• Award to be announced February 28, previously won by the first words of 17-, 23-, 39- and 51-Across
• Award for 11-/40-Down
• What the starts of 18-, 24-, 38- and 49-Across each won
• Academy Award that's the theme of this puzzle
• Coveted film honor
• Feel confident about Braveheart finally, old Scotsman the victor as such