A company in England had this contest:

http://apnews.excite.com/article/20041206/D86QE1G80.html

What do you think the top three cheesiest lines from the movies are?

I'll have to think of mine, but from the list, the top three would be:

1. "Titanic": Leonardo DiCaprio's "I'm the king of the world!"

2. "Ghost": Demi Moore's "Ditto," to Patrick Swayze's "I love you."

3(tied). "Top Gun": Val Kilmer to Tom Cruise: "You can be my wingman anytime"

3. (tied) "Independence Day": Bill Pullman's "Today we celebrate our Independence Day!"

"yippie kia-yay mother-fücker" -John McClain in Die Hard.

Die Hard is awesome. Anyone seen Last Action Hero?
Mediocre action movies are my guilty pleasure.

-"Are you ready to die?"

Blade: "Since the day I was born."

(extracted from Blade Trinity trailer)

i always liked that diehard line.
"aww hell no" - will smith, any movie
thats not really a cheesy line though, cheese is more like terrible puns of syrupy lovey junk.
ie any dialogue between anakin and natalie portman i star wars I, II and prolly III.

Anything out of Star Wars Episode 2 attack of the clones!including!

Senator Amidala "I truly... deeply... love you"

Anakin:" I have a bad feeling about this"

just about every other line in themovie

anything out of Clones which was said by C3PO during the factory/battle scene.

'you put my money to sleep now i'm gonna put your brain to sleep!'
-casino

the whole rest of the movie is awesome, but that one line always sticks out at me as just sounding dumb.

in the lotr the return of the king when that girl kills that big black thing, and it says "no man can kill me"
then she says
"but i am no man"

and
jerry maguire
"you had me at hello"

Frances O'Connor in A.I.: "Silly man, of course I'm not sure."

ktabes, great Zeppelin avatar.

Any Will Smith line from any film he has ever been in, but one example is from Independance Day, "I have got to get me one of these!"

Can't this guy go away?

I must also add this:
When Jeff Goldblum says "you must go faster!" in Jurassic Park AND in Independence Day, two movies, two of the same lines...what was the screenwriter for Independence Day thinking?

Speaking of Jeff Goldblum, check out this site:
http://www.jeffgoldblumiswatchingyoupoop.com -that is just hilarious.

Worst line ever:
(I think its from a McBain movie. Not the simpsons guy, the real one)

"You're going to be going to a lot of funerals. Including your own."

Isn't that great. And in the same film I think the President says:
"They ****ed with the wrong president."

I have GOT to see that movie!