DescentBB

How about some oldie's?

To Kill a Mockingbird
African Queen
A Shot in the Dark (the second Pink Panther movie)
The Great Escape
Bridge over the River Quai
True Grit

Saving Private Ryan
A Simple Plan
Lost Highway
Grave of the Fireflies (omg I'm crying just thinking about it)
This is Spinal Tap

there are others, but those are 5 so there.
damit too bad I can't whine about what you guys like.

Wow, it's really hard to narrow it down to five, but I'll give it a shot...

Casablanca
Saving Private Ryan
Outlaw Josey Wales
Notting Hill
The Empire Strikes Back (if only for the impact it had on me as the first Star Wars movie I saw when I was little)

Others that deserve mentioning...

Raiders of the Lost Ark
A Bridge too Far
Schindler's List
Donnie Brasco
The Great Escape
It's a Wonderful Life
Alien
The Matrix (just the first one!)
The Hunt for Red October
Master and Commander

I almost forgot one...

L.A. Story (an old Steve Martin film)

Wow i forgot a great one too. "Papillion". I think thats spelt right. If you get your hands on the book, it's a great yarn.

FC

I forgot several...

Willy Wonka and the Chocolate Factory.
Teenage Mutant Ninja Turtles I, II.
Star Wars Trilogy (The Originals, DUH!).
Indiana Jones Trilogy (Yeah, others have mentioned it and I STILL didn't put it DUHx2!).
Monty Python and the Holy Grail.
Dragonheart (OMG MD, HTF did I forget this one!).
Full Metal Jacket (Saw it mentioned as well, awesome movie).
Clash of the Titans (Can't believe nobody said this one yet).
The Rocky Movies (All the Way up to the one where he fights Dolph Lundgren as the Russian, the one after that was ass = a s s *What are we, 10?*).
Masters of the Universe (Speaking of Dolph, when I was a kid this movie was awesome!).
The Rambo Trilogy (Yeah, your worste nightmare ).
E.T.: The Extra Terrestrial (Can't believe nobody has said this one yet either).
Jaws (The first few, everything after was crap).
Back to the Future Trilogy (Duhx3!)
Close Encounters of the Third Kind.
Men in Black
Roger Rabbit (Come on, nobody said this one? classic!)
The Goonies (Another classic people! )
Batteries Not Included
Short Circuit
Cocoon
Cocoon II
Backdraft
The Fugitive
Apollo 13
Willow (Come on!)
Legend (Besides Willow and LOTR one of THE best fantasy movies).

sheesh, even after all of this I'm sure there are more I'm forgetting, lol. oh well, I was bored, so sue me.

I forgot about "The Sting"

It definitely deserves honorable mention on my list, if not top 5.