You think you're smart...

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Across
  1. 1. Omelette ingredient
  2. 4. Mathematical
  3. 7. "C3PO,human ---- relations"
  4. 8. This runs your body
  5. 9. Anakin Skywalker's girlfriend
  6. 11. Cola company
  7. 16. Capital of India
  8. 18. Sticks and ______ may break my bones but words will never hurt me
  9. 19. The millennium falcon ran in 12 of these
Down
  1. 2. Mammal with no voice box
  2. 3. Game playable with a chess board
  3. 5. One add one
  4. 6. Chewbacca is one of these
  5. 10. Star Wars robot
  6. 12. This captain wears a silver suit
  7. 13. One hit wonder by Skeelo
  8. 14. Synonym for airship
  9. 15. What is boba fett?
  10. 17. Similar to gears
  11. 20. Darth Sidious,Vader and Tranus are all ______