My personal favorites:
Django Unchained
Shawshank Redemption
Ocean's Eleven
Good Will Hunting
Rain Man
Hell or High Water
Airplane!
The Bourne Identity
The Green Mile
Terminator 2: Judgement Day
Groundhog Day
Dazed and Confused
Platoon
The Departed
It's A Wonderful Life
Saving Private Ryan
Gladiator
Nightcrawler
Die Hard
The Dark Knight