Why did they end the Dark Knight series?

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Tags

1. #believable
2. #began
3. #director
4. #particular
5. #series
6. #scene
7. #batman
8. #seemed
9. #first
10. #suggests
11. #future
12. #might
13. #begins
14. #films
15. #established
16. #explains
17. #rises
18. #further
19. #because
20. #forthcoming
21. #knight