I just finished my list as well (I'll also post in Top Films of All Time thread, I just want to double check some things first)...
Copied and pasted from my blog...
Ranking is sometimes a tough thing to do. Ultimately I could go back and forth on whether I like one film over another.
That being said, list making is fun. I get to let people know what films are personal to me. Films that I like for my own personal reasons. That being said, I'm more modern with my list. I guess I just connect more with recent films and find myself admiring the classics with a different sensibility (don't worry, a few made my list).
You'll see I grouped certain films by the same director as I just find myself associating their works with each other for whatever odd reason my brain is telling me to do so. See my groupings of Coppola and Lumet for what I mean... perhaps I can't imagine one of their films existing without the others.
1. Schindler's List (1993, Steven Spielberg)
2. American Beauty (1999, Sam Mendes)
3. Magnolia (1999, Paul Thomas Anderson)
4. The Ice Storm (1997, Ang Lee)
5. The Godfather Part II (1974, Francis Ford Coppola)
6. The Godfather (1972, Francis Ford Coppola)
7. Apocalypse Now (1979, Francis Ford Coppola)
8. Adaptation (2002, Spike Jonze)
9. All That Jazz (1979, Bob Fosse)
10. The Lives of Others (2006, Florian Henckel Von Donnersmarck)
11. Amadeus (1984, Milos Forman)
12. Paths of Glory (1957, Stanley Kubrick)
13. City of God (2002, Fernando Meirelles)
14. Children of Men (2006, Alfonso Cuaron)
15. LA Confidential (1997, Curtis Hanson)
16. On the Waterfront (1954, Elia Kazan)
17. Citizen Kane (1941, Orson Welles)
18. Network (1976, Sidney Lumet)
19. Dog Day Afternoon (1975, Sidney Lumet)
20. 12 Angry Men (1957, Sidney Lumet)
21. The Verdict (1982, Sidney Lumet)
22. Before the Devil Knows You're Dead (2007, Sidney Lumet)
23. Taxi Driver (1976, Martin Scorsese)
24. Bonnie and Clyde (1967, Arthur Penn)
25. Alien (1979, Ridley Scott)
26. Big Fish (2003, Tim Burton)
27. Oldboy (2003, Park Chan-wook)
28. Eternal Sunshine of the Spotless Mind (2004, Michel Gondry)
29. Pan's Labyrinth (2006, Guillermo Del Toro)
30. Munich (2005, Steven Spielberg)
31. The Insider (1999, Michael Mann)
32. Michael Clayton (2007, Tony Gilroy)
33. Traffic (2000, Steven Soderbergh)
34. Finding Neverland (2004, Marc Forster)
35. A History of Violence (2005, David Cronenberg)
36. Fight Club (1999, David Fincher)
37. Born on the Fourth of July (1989, Oliver Stone)
38. Quiz Show (1994, Robert Redford)
39. Glengarry Glen Ross (1992, James Foley)
40. The Constant Gardener (2005, Fernando Meirelles)
41. The Bridge on the River Kwai (1957, David Lean)
42. The Departed (2006, Martin Scorsese)
43. No Country for Old Men (2007, Ethan Coen and Joel Coen)
44. Black Hawk Down (2001, Ridley Scott)
45. Close Encounters of the Third Kind (1977, Steven Spielberg)
46. Wall-E (2008, Andrew Stanton)
47. Touch of Evil (1958, Orson Welles)
48. It Happened One Night (1933, Frank Capra)
49. All the President's Men (1976, Alan J. Pakula)
50. The Last Picture Show (1971, Peter Bogdanovich)
51. The Shawshank Redemption (1994, Frank Darabont)
52. The Social Network (2010, David Fincher)
53. Reds (1981, Warren Beatty)
54. JFK (1991, Oliver Stone)
55. The Prestige (2006, Christopher Nolan)
56. Good Night and Good Luck (2005, George Clooney)
57. Badlands (1973, Terrence Malick)
58. Children of Paradise (1945, Marcel Carne)
59. Beauty and the Beast (1991, Gary Trousdale and Kirk Wise)
60. Ordinary People (1980, Robert Redford)
61. The Lion King (1994, Roger Allers and Robert Minkoff)
62. The Truman Show (1998, Peter Weir)
63. Toy Story (1995, John Lasseter)
64. The Purple Rose of Cairo (1985, Woody Allen)
65. Broadcast News (1987, James L. Brooks)
66. Walk the Line (2005, James Mangold)
67. Road to Perdition (2002, Sam Mendes)
68. Casino Royale (2006, Martin Campbell)
69. Dead Man Walking (1995, Sean Penn)
70. District 9 (2009, Neill Blomkamp)
71. 3:10 to Yuma (2007, James Mangold)
72. Collateral (2004, Michael Mann)
73. The Matrix (1999, Andy Wachowski and Larry Wachowski)
74. In Bruges (2008, Martin McDonaugh)
75. Heat (1995, Michael Mann)
76. The Silence of the Lambs (1991, Jonathan Demme)
77. Fargo (1996, Ethan Coen and Joel Coen)
78. Reservoir Dogs (1992, Quentin Tarantino)
79. Night of the Living Dead (1968, George Romero)
80. Raiders of the Lost Ark (1981, Steven Spielberg)
81. Jaws (1975, Steven Spielberg)
82. Three Kings (1999, David O. Russell)
83. The French Connection (1971, William Friedkin)
84. The Long Goodbye (1975, Robert Altman)
85. Lone Star (1996, John Sayles)
86. The Proposition (2005, John Hillcoat)
87. Missing (1982, Costa Gavras)
88. Minority Report (2002, Steven Spielberg)
89. A.I.: Artificial Intelligence (2001, Steven Spielberg)
90. The Thing (1982, John Carpenter)
91. Mystic River (2003, Clint Eastwood)
92. Butch Cassidy and the Sundance Kid (1969, George Roy Hill)
93. The Wild Bunch (1969, Sam Peckinpah)
94. Ocean's Eleven (2001, Steven Soderbergh)
95. Knocked Up (2007, Judd Apatow)
96. Borat (2006, Larry Charles)
97. Finding Nemo (2003, Andrew Stanton)
98. The 40 Year Old Virgin (2005, Judd Apatow)
99. Superbad (2007, Greg Mottola)
100. Awakenings (1990, Penny Marshall)