According to imdb, TDK is the 6th greatest movie of all time.
1. 9.2 The Shawshank Redemption (1994) 1,074,834
2. 9.2 The Godfather (1972) 753,194
3. 9.0 The Godfather: Part II (1974) 490,080
4. 8.9 Pulp Fiction (1994) 832,567
5. 8.9 The Good, the Bad and the Ugly (1966) 323,751
6. 8.9 The Dark Knight (2008) 1,047,865
7. 8.9 12 Angry Men (1957) 264,798
8. 8.9 Schindler's List (1993) 547,042
9. 8.8 The Lord of the Rings: The Return of the King (2003) 760,246
10. 8.8 Fight Club (1999) 816,494
11. 8.8 Star Wars: Episode V - The Empire Strikes Back (1980) 520,950
12. 8.8 The Lord of the Rings: The Fellowship of the Ring (2001) 786,809
13. 8.7 One Flew Over the Cuckoo's Nest (1975) 448,120
14. 8.7 Goodfellas (1990) 466,622
15. 8.7 Inception (2010) 847,553
16. 8.7 Seven Samurai (1954) 162,282
17. 8.7 Star Wars: Episode IV - A New Hope (1977) 586,329
18. 8.7 Forrest Gump (1994) 713,465
19. 8.7 The Matrix (1999) 772,320
20. 8.7 The Lord of the Rings: The Two Towers (2002) 682,565
21. 8.6 City of God (2002) 350,754
22. 8.6 The Silence of the Lambs (1991) 528,927
23. 8.6 Once Upon a Time in the West (1968) 146,117
24. 8.6 Se7en (1995) 627,282
25. 8.6 Casablanca (1942) 279,258
Overrated? Possibly, but an impressive achievement either way.