Shia LaBeouf: Sam Witwicky
Optimus Prime : What your leaders say is true: this was all my fault. I told them whom to trust. I was so wrong.
Sam Witwicky : That doesn't make it your fault, it just makes you human for a change.
Optimus Prime : Remember this: you may lose your faith in us, but never in yourselves.
Sam Witwicky : I need to know how you're going to fight back. I know there's a strategy, I know you're coming back with reinforcements, something. I know there's a plan. You can tell me, no other human will ever know.
Optimus Prime : There is no plan.
Sam Witwicky : If we just do what they want, how are we ever going to live with ourselves?
Optimus Prime : You are my friend Sam, you always will be. But your leaders have spoken. From here the fight will be your own.
Sam Witwicky : [to Lennox] We gotta get Sentinel outta here, he is the key to all this...
Sentinel Prime : Indeed I am! What you must realize my Autobot brothers, is we were never going to win the war! For the sake of our planet's survival, a deal had to be made... with Megatron!
Lennox : GET BACK!
Ironhide : [rusting away] Sentinel... what have you done?
Sentinel Prime : [to Ironhide] I hereby discharge you from duty!
[shoots Ironhide again]
Optimus Prime : [shoots down the ship attacking Sam and Epps] We will kill them all! Your leaders will now understand: Decepticons will never leave your planet alone. And we needed them to believe we had gone. For today, in the name of freedom, we take the battle to them!
[other Autobots appear]
Sam Witwicky : I saw your ship blow up!
Roadbuster : The ship? We were never in the ship! We designed the damn thing, didn't we?
Leadfoot : We were hidden in the first booster rocket to seperate - splashed down back in the Atlantic, just as planned.
Leadfoot : We ain't going nowhere!
Brains : Yeah, no one's exiling us!
Wheelie : The Autobots are staying right here. We're gonna help you win this war!
Sam Witwicky : Come here. Come here!
Bumblebee : [through radio] "Come on, Sam!"
Sam Witwicky : What is your deal, huh? I know your Black Op stuff is important to you and i'm not trying to diminish it or guilt trip you or anything, I just never see you anymore! You can't come to the garage and hang out just one night?
Bumblebee : "Sam, that makes me feel bad."
Sam Witwicky : Well I hope you feel bad, you should feel bad - look at the jalopy I'm driving now - I feel bad every single day!
Robert Epps : [seeing destroyed Chicago] My god. We came here to find her in the middle of all of that?
Epps Team 'Stone' : Are we really going out there Epps?
Eddie : I'm not going in there!
Robert Epps : No one's going in.
Sam Witwicky : I am. With or without you, I'll find her.
Robert Epps : You're going to get yourself killed Sam! Is that what you want? Is that what you want, you came all the way out here to get yourself killed? Listen to what I'm saying!
Sam Witwicky : She's here because of me, do you understand?
Robert Epps : Listen, if you go in this building, that's if she's still alive, there's no way you're going to be able to reach her!
Sam Witwicky : What do you suggest I do?
Robert Epps : It's over. I'm sorry, but it's over.
Sam Witwicky : [Bumblebee appears, transforms] That's my car.
Sam Witwicky : We got an emergency, you gotta get Colonel Lennox out here. I'm reporting Decepticons! Decepticons are back, you gotta open that gate right now!
NEST Guard : Easy sir, this is Heath and Human services.
Sam Witwicky : Right, packing M4s! What are you protecting? Colostomy bags? Bedpans? Throat lozenges? Where'd you get that hat from, nursing school? So you're nurses and foot powder protectors, fantastic!
Charlotte Mearing : Mr. Witwicky, I thought I made it clear to you that I did not want you calling this phone...
Sam Witwicky : Listen, the whole thing has been a set-up since the beginning! The Decepticons wanted Optimus to find Sentinel because he was the only one who could revive him.
Charlotte Mearing : But we have the space bridge...
Sam Witwicky : Mearing, you have five pillars - I just learned that they have hundreds! You're doing exactly what they wanted you to do! What do you need me to say to you? The Decepticons are coming for Sentinel Prime!
Sam Witwicky : [comforting Carly] You're gonna be fine, I promise...
Sam Witwicky : Humans are working with the Decepticons.
Wheelie : You know, Sam, I don't know about moving in with this chick. What if she dumps us like the last girl?
Brains : She was mean, didn't like her.
Wheelie : Us guys gotta stick together!
Brains : [sings] We are family! fa-fa-mi-mi-family.
Sam Witwicky : No, we are not family! You're a political refugee, and I have finally found someone who appreciates me for me!
Brains : Well, you tell her that we're not your pets, and we're not your toys, all right? We're an advanced genius alien race just looking for a home!
Optimus Prime : They're surrounding the city to make a fortress so that no one can see what their up to inside. Our only chance is the element of surprise.
Sam Witwicky : [looks at the Decepticon airship] I think I know where to look. So you can fly this thing, right?
[Bumblebee wiggles his fingers]
Sam Witwicky : What is that... What is that? What is that? So-so? So you so-so can fly this. That feels terrible.
Bumblebee : Uh-huh!
Wheelie : [coming in out of the rain] Frickin' shorting my circuits out here! It's inhumane, that's what it is! Make us live in a box on a balcony next to a beast? Like a common animal!
Sam Witwicky : Stop, okay? You and your creepy sidekick can't be in here without permission.
Wheelie : According to who? Miss Blondie Blonde?
[climbs on the dog]
Wheelie : Giddyup, little doggie! Ha!
Judy Witwicky : Sam, I think for a job interview that you should wear real pants.
Sam Witwicky : I think for life, you should wear real pants.
Judy Witwicky : [Sees Sam's new car] Oh, what happened to Bumblebee?
Sam Witwicky : He's off on his missions. I had to get this for backup.
Ron Witwicky : Your car has a job, huh?
Judy Witwicky : Stop. What does it change into?
Sam Witwicky : It doesn't change into anything. It's a collector's item, Ma. I got it for a steal. It just needs some work. Trust me.
Judy Witwicky : No, I think it's darling. It reminds me a lot of Bumblebee... if Bumblebee were a sad piece of shit.
[as the Autobots leave in the starship Xanthium]
Sam Witwicky : You wanted an answer, you got it.
Dylan : I always get what I want, Sam. I just had to be sure.
Sam Witwicky : Sure of what?
Dylan : That they would go without a fight.
[signals Starscream, who blows up the Xanthium]
Dylan : We all work for the Decepticons now.
Sam Witwicky : The Autobots are off saving the world and I've organized four binders.
Brains : [watching Carly and Sam make out] Wow!
Brains : Get lucky!
Carly Miller : [shrieks] Get him out of here!
Brains : [is grabbed by Sam and is kicked] Wait. No, no, no, no!
Carly Miller : Oh, he's gross!
Brains : She's good.
Sam Witwicky : Sorry. They're stranded here. Somebody's got to watch out for them.
Carly Miller : Yesterday, that one was in my underwear drawer.
Brains : Did research! Looking real good too! Ha-ha-ha...
[Sam slaps him]
Brains : Ow! No need to hit me!
Sam Witwicky : [looking at documents] Bee, there's something else going on here. The moon programme, the cover-ups, the assassinations, it's all led to this...
Sam Witwicky : You love it, don't you? I'm just your American boytoy!
Carly Miller : [laughs] I love a boytoy.
Sam Witwicky : Do you know how demoralizing it is that I've saved the world twice and still be groveling for a job?
Carly Miller : People don't know that you've saved the world Sam, I mean I do, I believe you.
Sam Witwicky : Government knows, I mean they could hook me up with a job right here in DC. I should be working with the Autobots otherwise, it's not fair.
Sam Witwicky : [pillars start to spark] It's starting!
Sam Witwicky : [Upset as it seems Bruce won't hire him for the job he wants] I've saved your life twice. I can't tell you how, but you are still alive because of me.
Sam Witwicky : Chicago is Ground Zero, do you understand?