Apocalypse Now is cooler, but Full Metal Jacket has some of the best dialogue ever:
"Who said that? Who the fuck said that? Who's
the slimy
little communist shit twinkle-toed
cocksucker down here, who just
signed his
own death warrant? Nobody, huh?! The fairy
fucking
godmother said it! Out-fucking-
standing! I will P.T. you all until
you fucking
die! I'll P.T. you until your assholes are
sucking
buttermilk."
"Well ...
no shit. What have we got here, a
fucking comedian? Private Joker? I
admire
your honesty. Hell, I like you. You can come
over to my
house and fuck my sister."
" HARTMAN
Where in hell are you from anyway, Private?
COWBOY
Sir, Texas, sir!
HARTMAN
Holy dogshit! Texas! Only
steers and queers
come from Texas, Private Cowboy! And you
don't look much like a steer to me, so that
kinda narrows it down!
Do you suck dicks!
COWBOY
Sir, no, sir!
HARTMAN
Are you a peter-puffer?
COWBOY
Sir, no,
sir!
HARTMAN
I'll bet you're the kind of guy that would
fuck
a person in the ass and not even have the
goddam common
courtesy to give him a reach-
around! I'll be watching you!"
"
HARTMAN
Did your parents have any
children that lived?
PYLE
Sir, yes, sir!
HARTMAN
I'll bet they regret that! You're so ugly you
could be
a modern art masterpiece! What's
your name, fatbody?"
"
HARTMAN
Tonight ... you pukes will sleep with
your
rifles! You will give your rifle a girl's name!
Because
this is the only pussy you people are
going to get! Your days of
finger-banging old
Mary Jane Rottencrotch through her pretty
pink panties are over!"