Puzzle #16 (Famous Movies)

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Across
  1. 1. It features a Punxsutawney Phil. (9, 3)
  2. 3. Is life really about chocolates? (7, 4)
  3. 8. The ultimate space western. (4, 4)
  4. 11. He built it, and he came. (5, 2, 6)
  5. 12. Non-conformist in a Florida prison camp. (4,4,4)
  6. 17. A skyscraper at Christmas. (3, 4)
  7. 18. "Here's looking at you, kid." (10)
  8. 20. A doomed maiden voyage. (7)
Down
  1. 2. "Not mother?" (5, 6, 11)
  2. 4. Epic mob drama. (3, 9)
  3. 5. Is deja vu a glitch? (3, 6)
  4. 6. It definitely wasn't Kansas. (6, 2, 2)
  5. 7. The deadliest of sins. (5)
  6. 9. Jonesy made it out too. (5)
  7. 10. The pursuit of replicants. (5, 6)
  8. 13. A haunted hotel. (3, 7)
  9. 14. A "Royale with cheese", perhaps? (4, 7)
  10. 15. Commodus vs Maximus. (9)
  11. 16. "Mary Ellen Moffat. She broke my heart." (4)
  12. 19. No-one should talk about it. (5, 4)