One of my favorite scenes from any film is the following from TAXI DRIVER. The guy who was cast for the part didn't show up, so Martin Scorsese had to fill in, and the result is one of the most terrific scenes in film history.
Pull over to the curb. Right over to the curb over there.
No, don't... the fucking meter!
What are you doing? What are you doing with the meter?
Did I tell you to do that with the meter?
Put the meter back, let the numbers go on.
I don't care what I have to pay. I'm not getting out.
Put the meter back on. Put it down.
Put it... That's right. Put it down!
That's right.
Why are you writing? Don't write!
Put the thing down. Just sit.
I didn't tell you to write. I said, "Pull over to the curb."
We're gonna sit here.
We're gonna sit.
Cabbie, you see that light up there? The window?
The light, the window up there on the second floor.
The one that's closest to the edge of the building.
The light up in the window, second story.
Are you blind? Do you see the light?
Yeah.
Yeah, you see it. Good.
See the woman in the window?
Do you see the woman in the window?
Yeah.
You see the woman. Good.
I want you to see that woman 'cause that's my wife.
But that's not my apartment.
It's not my apartment. You know who lives there?
You wouldn't know. I'm just saying, "But you know who lives there?"
A nigger lives there. How do you like that?
I'm gonna kill her.
There's nothing else. I'm gonna kill her.
What do you think of that?
I said, what do you think of that?
Don't answer.
You don't have to answer everything.
I'm gonna kill her with a . Magnum pistol.
I have a . Magnum pistol. I'm gonna kill her with that gun.
Did you ever see what a . Magnum would do to a woman's face?
It'll fucking destroy it. Just blow it right apart.
That's what it can do to her face.
Did you ever see what it can do to a woman's pussy? That you should see! That you should see...
You should see what a . Magnum's gonna do to a woman's pussy.
What's that?
I know you must think I'm, you know... You must think I'm pretty sick or something.
Right? You must think I'm pretty sick?
Right? I bet you really think I'm sick, right? You think I'm sick?
You think I'm sick?
You don't have to answer that. I'm paying for the ride.