The best has to be Bad Santa when Billy Bob Thorton beats the crap out of a bunch of little kids who were teasing the fat kid who idolized him. The way he describes it later to his partner makes it even more hilarious “I think i turned a corner today… i beat up a buncha kids. Made me feel good about myself”.
That’s the one I came in to post. Fortunately, it is available on YouTube.
Pretty much the whole reason for the movie My Bodyguard. Here is the pwned scene. Means more if you watch this first.
Very young Matt Dillon, Adam Baldwin and Joan Cusack.
Dean Wormer, Gregg Marmalard, Doug Niedermyer vs. The Deltas.
'Nuff said. 
Witness
Harrison Ford ( John Book–Cop)is watching the tourist smear ice cream all over the Amish kids face. The kid doesen"t fight back, because he is Amish, and has been taught that violence is not the proper way to deal with violence.
Finally, Ford has had enough, and heads for the situation, and you can tell he is real cheesed off.
The old Amishman who has been riding to town with Ford grabs his arm and says “No John Book–It is not our way!” to which Book replies " yeah-but it’s my way!"
Goes over to the tourist kid with the ice cream and proceeds to shatter Mr. Tourists nose.
God I love that movie!!!
(“Oh and whacking–I’m hell at whacking”).
In The NeverEnding Story, where Bastian returns to our world riding the roaring Falkor, chasing the bullies down the alley and into the garbage bin he’d earlier had to hide in, while they turn back to watch him flying off into the sky.
It totally destroys the ending of the book, but man, what a comeback.
And I almost ashamed to bring it up, but it has to be one the most enjoyable pwning ever. Pretty Woman, when Julia Roberts comes back the women who wouldn’t serve her in the shop because she looked a ho.
Vivian: Do you remember me?
Salesperson: No, I’m sorry.
Vivian: I was in here yesterday. You wouldn’t wait on me?
Salesperson: Oh.
Vivian: You work on commission, right?
Salesperson: Ah, yes.
Vivian: Big mistake. Big. Huge! [turns away, flinging about a dozen shopping bags] I have to go shopping now!
Heh. My sister and I still say “I have to go shopping now!” when we are trying to make a dramatic exit.
In The Presidio, when a local thug picks a fight with Sean Connery, who’s in uniform.
“All right. But if I fight you, it’s going to only be with my right thumb. My left thumb is much too powerful for you.”
And Connery proceeds to demolish the guy just with his thumb.
IIRC, in one episode of Babylon 5, a bully is demolished by a guy who was his former victim, while his teacher looks on and offers insulting critiques of the bully’s attempts to defend himself. “Notice the lack of technique ! Typical of this personality type.”
Does Jabba the Hutt’s demise count?
Dirty Dancing-when Jerry Orbach finds out it was actually Robbie who got Penny pregnant, not Johnny, and rips the envelope (he was going to sponsor Robbie’s med school tuition) out of his hand.
Eh, I didn’t find that nearly as satisfying as it could have been. When I saw she was going into the shop, I immediately thought, “Wait – whatsisname’s always buying and selling property. She’ll ask him to…aw, just a snippy remark. Big whoop.”
She should have asked Gere’s character (still can’t remember the name) to buy the boutique as a going-away present for her. First order of business? Complete staff turnover. As filmed, though, the two snots still have jobs, and Viv’s not the only woman in Beverly Hills with a sugar daddy.
Oh, and Guin, you forgot Orbach telling Swayze, “When I’m wrong, I say I’m wrong.” That had to take a lot of of him.
Indiana Jones 1 - the swordsman.
The scene in City Slickers when super-nerd Phil (Daniel Stern) gets to the ‘mad as hell and not gonna take it anymore’ and points a confiscated pistol at the two drunk ranch hands who’d been bullying the other drivers and threatening to kill Norman (the calf) a few moments before. Not even his friends know whether he’s going to blow the bullies’ brains out (though the fact it’s a comedy kinda let’s the audience know).
The end of Diggstown, a mediocre movie with a perfect ending that elevates it into one of my all time favorites, and has left me with a permanent crush on James Woods.
Um…I don’t think that line is in the film. Pretty sure she exits on the “Big mistake…HUGE” line.
I’d like to cite the case of Ewoks v. Empire.
That depends on who you’re rooting for.
Pretty sure it is. Can’t find it on youtube, but every page of
[quotes]
(http://www.sho.com/site/schedules/product_page.do?episodeid=6446&seriesid=0&include=00quotes.inc) I’ve checked has it. It’s the best part of the movie!
When Crispin Glover socks ??? in the jaw, knocking him out, in Back to the Future.
Speaking of which, 2015 is only 7 years away, and I haven’t even heard rumors of a prototype flying car yet. WTF?!?!
There’s the movie, Bully. They kill him.
Pan’s Labyrinth - Mercedes getting the drop on the general. Yee-owtch!