Happy Birthday Puzzle!

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Across
  1. 3. Film, The red one
  2. 5. 21 in Celsius
  3. 7. Eggs?
  4. 9. Christmas leftovers
  5. 11. May you live a hundred years
  6. 12. They moved to Milton Keynes
  7. 14. Jungle book king
  8. 17. Defender of mankind
  9. 18. Yellow front door
  10. 20. Beautiful thorn
Down
  1. 1. Upside down apples
  2. 2. Waltzing down under
  3. 3. I want to ride my...
  4. 4. On a par with Pluto
  5. 6. Today’s the day!
  6. 8. Gardening tool (anagram)
  7. 10. Play it again
  8. 11. As Fry not Jobs
  9. 13. ‘It is a truth universally acknowledged...’ she said
  10. 15. Film award
  11. 16. 50370
  12. 19. Your present