The IMDb top 10 is pretty close to spot on IMO, Inception is slightly overrated due to being new:
Rank Rating Title Votes
1. 9.2 The Shawshank Redemption (1994)
2. 9.2 The Godfather (1972)
3. 9.0 The Godfather: Part II (1974)
4. 8.9 The Good, the Bad and the Ugly (1966)
5. 8.9 Pulp Fiction (1994)
6. 8.9 Schindler's List (1993)
7. 8.9 12 Angry Men (1957)
8. 8.8 Inception (2010)
9. 8.8 One Flew Over the Cuckoo's Nest (1975)
10. 8.8 The Dark Knight (2008)
Pretty close. Agree with the inception and prob Dark Knight being in there cos there new, but no real complaints.
Although I would have Goodfellas and Toy Story in there. (And Taxi Driver, Chinatown, Raging Bull, Apocalyspe Now, Fight Club, Jaws, Blade runner, Star Wars, Lord of the rings, Ailen, Die Hard, The Apartment, Heat, Terminator 2, and a lot more) Seriously hows anyone meant to narrow it down to 10 or 20?