Buffy: All right, let me get this straight, okay? You want me to go to the graveyard with you because I'm the Chosen One, and there are vampires?
Merrick: Yes.
Buffy: Does Elvis talk to you?

Buffy: God, what are you doing here? This is a naked place!
Merrick: You were supposed to meet me an hour ago.
Buffy: I told you that I had practice.
Merrick: And I told you to skip it.
Buffy: Listen, I think there's been a big mistake, all right? I mean, I appreciate that there are real vampires, and that you're on this big holy mission, but obviously somebody read their tea leaves wrong because I'm not your girl. And I don't think I'm up to it. And just between you and me, neither do you.
Merrick: It is true you have missed years of training.
Buffy: See?
Merrick: And you are undisciplined, frivolous...
Buffy: Don't I know it?
Merrick: Probably the most vacuous choice in my entire...
Buffy: Okay! Okay, I think we both get the point.
Merrick: Right. Then I don't think there's anything more for us to say.
Buffy: Guess not. Good luck and all.
Merrick: Oh, yes, there is one thing...
Buffy: [exasperated] What?
Merrick: This...
[He throws a dagger at Buffy's head. She catches it.]
Merrick: Bravo.
Buffy: You threw a knife at my head.
Merrick: Yes, I had to show you.
Buffy: But you threw a knife at my head!
Merrick: And you caught it. Only the Chosen One could have caught it.
Buffy: Don't you get it? I don't want to be the Chosen One! I don't want to spend the rest of my life chasing after vampires. All I want to do is to graduate from high school, go to Europe, marry Christian Slater, and die. Now it may not sound too exciting to a scone-head like you, but I think it's swell. And you come along and tell me I'm a member of the Hairy Mole Club, so you can throw things at me?!
Merrick: Buffy, it was necessary.
Buffy: Last night, you knew I was sitting on a fresh grave, didn't you?
Merrick: Yes, because I had to make you aware of the implica-...
[Buffy punches him in the face, and he goes skidding across the bench]
Buffy: Oh. Wow. I never hit anybody before.
Merrick: [holding a handkerchief to his freshly-bashed nose] Really? Well, you did it perfectly.
Buffy: I didn't even break a nail...

Merrick: You must never forget the cardinal rule, Buffy: one vampire is a lot easier to kill than ten.
Buffy: Does the word 'duh' mean anything to you?

Buffy: Merrrick, I'm not gonna croak that easily. I have something that the other girls didn't have.
Merrick: And what might that be, pray?
Buffy: My keen fashion sense.
Merrick: Oh, vampires of the world, beware.
Buffy: Merrick, you made a joke! That's good - are you all right? Do you wanna lie down? I know it hurts the first time.

Pike: Hey, you're that weird guy.
Merrick: You've been hurt.
Pike: Aw, no, you know what they say... any one you can walk away from is a good...
[Pike faints]
Buffy: You know this guy?
Merrick: Well, somewhat. He's rather fond of passing out just as I happen by.

Lothos: You finally brought me someone real. But is she ready?
Merrick: Well, actually, she's quite a pain in the ass.

Merrick: You do everything wrong.
Buffy: I'm sorry, I take it back...
Merrick: No, no, do it wrong. Don't play our game.

Surfing a site called The Daily Script, I came across what appears to be an undated, early draft of the BtVS movie. It's interesting to see how much had changed after this version was written, including some of the dialogue that was cut...

Merrick: Do you know how many girls I've trained to be Slayers? Five. Five properly prepared girls, girls who faced their responsibilities, who worked hard to become women overnight -- harder than you've ever worked in your life -- and I saw them ripped apart. Do you want to live? Do you?
Buffy: I...
Merrick: What did you think, that being able to jump about and hit people makes you a Slayer?
[Buffy looks at him a bit.]
Buffy: Five?
Merrick: Five.

Buffy: How can you keep doing this?
Merrick: It's what I was raised to do. There aren't many of us left, the Watchers.
Buffy: Watchers?
Merrick: There's a small village in Hampshire, near Stonehenge... (sees she doesn't know it) ... near a bunch of big rocks. That's where I was born. My father taught me about the training, about finding the Slayers, reading the signs. There's a small cluster of us, a few families, really... most of the neighboring villagers think we're just a bunch of harmless old loonies. I thought so myself for a time, when I was younger... (stops himself) I'm sorry. I'm not supposed to... I shouldn't go on like this.
Buffy: I wish you would.
Merrick: It isn't important.
Buffy: I'm curious, is all.
Merrick: Buffy, don't... don't start thinking of me as your friend. It interferes with the work, and it...
Buffy: And it makes it worse when I die, right?

[Buffy buries Merrick herself and tries to think of what to say]
Buffy: Ummm, our Father, Who art in Heaven, duhmm... hallowed be Thy name. Uhh, kingdom come, daily bread, I don't know. I don't even know if you're religious. You probably are. But you're dead, you know. You're just totally dead. And... (She sits heavily on his grave.) ... and I don't know what to do. You were the one who... I don't know if the training was over. I don't even know if I passed. You're so stupid! How could you be so stupid? What am I supposed to do without you? You son of a bitch! (She stops, looks down for a moment) ...Amen.