I'll list a few you may not have seen yet.

1. Mississippi Burning
2. The Hunt for Red October
3. Tombstone (you most likely saw this)
4. The Widowmaker
5. Clear and Present Danger
6. The Pope of Greenwich Village

i have Hunt for Red October and Widowmaker on DVD. Both good movies

Havent seen any of the other ones though

Star Wars (any of them)

Any Clint Eastwood movie.

Some Eddie Murphy Classics

Ghostbusters

jurassic park

the hills have eyes was a good movie

the good, the bad and the ugly
glengarry glennross
fistful fo dollars
for a few dollars more
the wild bunch
butch cassidy and the sundance kid
cool hand luke
motorcycle diaries
platoon
easy rider
deer hunter
all the presidents men

so many more just to lazy to list them all

LA Confidential, Chinatown (good detective movies), Mystic River, Shawshank Redemption, Forrest Gump, Last Samurai...

Chinatown is a classic.

It's on AFI's 100 best movies of the 20th century list.

searching amazon now on movies descriptions. Thanks all