Banner quotes from Avengers: Endgame (2019)

Banner

Okay, here we go. Time travel test number one. Scott, fire up the uhhhh…the van thing. [Scott opens the portal]

Steve

Breakers are set, emergency generators are on standby.

Banner

Good. 'Cause if we blow the grid, I don't wanna lose tiny here in the 1950's.

Scott

Excuse me?

He's kidding. You can't say things like that.

Banner

It was a bad joke.

You were kidding, right?

Banner

I have no idea. We're talking about time travel here. Either it's all a joke, or none of it is. [loudly and gives Scott a thumbs up] We're good! Get your helmet on, Scott. I'm gonna send you back a week, let you walk around for an hour, then bring you back in 10 seconds. Makes sense?

Scott

Perfectly not confusing.

Steve

Good luck, Scott. You got this.

Scott

You're right. I do, Captain America!

Banner

On the count of 3. 3…2…1!

Young Scott

Uh, guys? T-This doesn't feel right.

Steve

What is this?

Banner

What's going on?

Who is that?

Banner

Hold on.

Is that Scott?

Young Scott

Yes, it's Scott!

Elderly Scott

OWW! My back…!

Steve

What is this?

Banner

Can I get a little space here.

Steve

Yeah, yeah. Can you bring him back?

Banner

I'm working on it! [taps the side of the button pad, trying to pull back Scott]

Steve

It's a baby.

Banner

It's Scott!

As a baby!

Banner

He'll grow!

Bring Scott back!

Banner

When I say kill the power, kill the power.

Oh, my God.

Banner

And…kill it!

Scott

Somebody peed my pants…

Oh, thank God.

Scott

But I don't know if it was baby-me or old-me. Or…just me-me.

Banner

Time travel! [Steve just shakes his head and walks away] What? I see this as an absolute win.

Banner

Clint, now you're gonna feel a little discombobulated from the chronoshift, don't worry about that--

Wait, wait, wait a second. Let me ask you something. If we can do this, you know…go back in time, why don't we just find baby Thanos, you know, and… [makes a gesture of strangling a baby with a rope, complete with "choking sound"]

Banner

First of all, that's horrible...

It's Thanos.

Banner

...and secondly, time doesn't work that way. Changing the past doesn't change the future!

Scott

Look, we go back, we get the stones before Thanos gets them? Thanos doesn't have the stones. Problem solved!

Bingo.

Nebula

That's not how it works.

Well, that's what I heard.

Banner

What, by who? Who told you that?

Star Trek, Terminator, Timecop, Time After Time…

Scott

…Quantum Leap…

Wrinkle in Time, Somewhere in Time…

Scott

Hot Tub Time Machine…

Hot Tub Time Machine, Bill and Ted's Excellent Adventure - basically, any movie that deals with time travel.

Scott

Die Hard? No, that's not one.

This is known.

Banner

I don't know why everyone believes that, but that isn't true. Think about it. If you travel to the past, that past becomes your future. And your former present becomes the past, which can't now be changed by your new future!

Nebula

Exactly.

Scott

So Back to the Future is a bunch of bullshit?

Steve

Okay, so the "how" works. Now we gotta figure out the "when" and the "where." Almost all of us has had an encounter with at least one of the six Infinity Stones.

Well, I'd substitute the word "encounter" for "damn well near been killed by" one of the six Infinity Stones.

Scott

I haven't, I don't even know what the hell you're all talking about.

Banner

Regardless, we only have enough Pym Particles for one round trip each, and these Stones have been in a lot of different places throughout history.

Our history. So, not a lot of convenient spots to just drop in.

Which means we have to pick our targets.

Correct.

Steve

Let's start with the Aether. Thor, what do you know?

Is he asleep?

No. I'm pretty sure he's dead.

Thor

Where to start? Umm…the Aether, first, is not a stone, someone called it a stone before. It's more of a…an angry sludge thing, so…someone's gonna need to amend that. Here's an interesting story though, many years ago…my grandfather had to hide the stones from the Dark Elves, wooooh, scary beings. So Jane… [an image of Jane Foster pops up on the screen] Oh, there she is. That's Jane. She's– an old flame of mine. She– she stuck her hand inside a rock this one time– and then the Aether stuck itself inside her. And she became very, very sick. So I had to take her to Asgard, which is where I'm from. And we had to try and fix her. We were dating at the time, you see. I got to introduce her to my mother…who's dead… [seeming on the verge of tears] …and, oh, you know, Jane and I aren't even dating anymore, these things happen though you know, nothing last forever… [Tony starts to push Thor back to his chair] I'm not done yet, the only thing permanent in life is impermanence.

Awesome. Eggs? Breakfast?

Thor

No. I'd like a Bloody Mary.

Quill said he stole the Power Stone from Morag.

Scott

Is that a person?

Morag's a planet, Quill was a person.

Scott

A planet? Like in outer space?

Oh, look: it's like a little puppy, all happy and everything. [starts petting Scott] Do you want to go to space? You want to go to space, puppy? I'll take you to space!

Nebula

Thanos found the Soul Stone on Vormir.

What is Vormir?

Nebula

A dominion of death, at the very center of Celestial existence. It's where... Thanos murdered my sister.

Scott

Not it.

That Time Stone guy…

Banner

Doctor Strange.

Yeah, what kind of doctor was he?

Neuro stuff meets rabbit from a hat. Nice place in the Village, though.

Banner

Yeah. Sullivan Street. [Corrects himself] Hmm– Bleecker.

Wait, he lived in New York?

No, he lived in Toronto.

Guys, if you pick the right year, there are three Stones in New York.

Banner

Shut the front door!

I'm sorry, I can't help you, Bruce. If I give up the Time Stone to help your Reality, I'm dooming my own.

Bruce Banner

With all due respect, I'm not sure the science really supports that.

The Infinity Stones create what you experience as the flow of time. Remove one stone and that flow splits. [pulls out one of the Stones, which causes a black stream indicating a point of divergence to appear] Now, this may benefit your reality, but my new one… not so much. In this new branched Reality, without our chief weapon against the forces of darkness, our world will be overrun. Millions will suffer. So tell me Doctor, can your science prevent all that?

Banner

No, but we can erase it. Because once we are done with the stones, we can return each one to its own timeline at the moment it was taken. So, chronologically, in that reality, they never left.

But you are leaving out the most important part. In order to return the stones, you have to survive.

Banner

We will. I will. I promise.

I can't risk this Reality on a promise. It is the duty of the Sorcerer Supreme to protect the Time Stone.

Banner

Then, why the hell did Strange give it away?

What did you say?

Banner

Strange, he gave it away. He gave it to Thanos.

Willingly?

Banner

Yes.

Why?

Banner

I have no idea. Maybe he made a mistake.

Or I did. [Reunites Banner's spirit with his body] Strange is meant to be the best of us.

Banner

So he must have done it for a reason.

I fear you might be right. [Gives Bruce the Time Stone]

Banner

Thank you.

I'm counting on you, Bruce. We all are.