[mhking]

The Usual Suspects
Toys
Kelly's Heroes
The Matrix
Star Trek VI
Raiders of the Lost Ark
The Shawshank Redemption
To Live and Die In L.A.
Bullit
The Good, The Bad and the Ugly
Ocean's Eleven (1960 version)
Back to the Future
Rear Window
Brother from Another Planet

I'm sure there are others, but that's probably the top of my list.

[valleygal]

All my favorites (many of them classics) have been mentioned, but I'll add a couple I haven't seen yet:

Sense and Sensability
The Kid
Men of Honor
You've Got Mail
An Affair to Remember
Sleepless in Seattle
The Wedding Singer
Stand and Deliver

and if someone can mention "Dumb and Dumber", I don't feel badly about adding

Bill and Ted's Excellent Adventure