Idiocracy Program: Please speak your name as it appears on your current federal identity card. Document number G24L8.
Joe: I'm not sure if—
Program: You have entered the name "Not Sure". Is this correct, Not Sure?
Joe: No, it's not correct.
Program: Thank you. "Not" is correct. Is "Sure" correct?
Joe: No it's not. My name is Joe—
Program: You've already confirmed your first name is "Not". Please confirm your last name "Sure".
Joe: My last name is not "Sure".
Program: Thank you, "Not Sure".
Joe: No. What I mean is that my name is Joe.
Program: Confirmation is complete. Please wait while I tattoo your new identity on your arm.

Sin City Sure, he's an asshole. Sure he's dead. Sure, I'm just imagining that he's talking. That doesn't stop the bastard from being absolutely right.

Cosby Show, The Al: Sarah, I'm not sure I want you to get married.
Sarah: Why not?
Al: [hugging Claire] Well I lost one girl, already. I'm not sure I'm ready to lose another.
Cliff: Well you can have that one back if you want.

Adam Savage I wouldn't say jamie is an evil genius. I'm not sure he's evil and I'm not sure he's a genius.

Mythbusters Adam: I wouldn't say Jamie's an evil genius…I'm not sure he's evil, and I'm not sure he's a genius.

Friday Night Lights Jess: Coach I was wondering if you'd write me a recommendation for this thing at Baylor.
Coach Taylor: At Baylor? Ah, sure, write something up and leave it on my desk.
Jess: But Coach, I can't recommend myself.
Coach Taylor: Sure you can.
Jess: Are you sure that's legal?
Coach Taylor: Sure, sure.

East of Eden by John Steinbeck Is it true that when you love a woman you are never sure—never sure of her because you aren't sure of yourself? (p. 69)

Jeff Foxworthy Changing a diaper is a lot like getting a present from your grandmother - you're not sure what you've got but you're pretty sure you're not going to like it.

Raccoons, The Bert: I'm not scared of Cyril Sneer!
Melissa: He could have laser guns! Booby traps! Couldn't we all just agree to be cautious?
Bert: Yeah, sure, sure.....

Supernatural Dean: (asking about Sam's distracting attention plan) Are you sure about this?
Sam: "Pretty sure."
Dean: "Considering the circumstances I'd like a little better than 'pretty sure'."
Sam: "Okay... really pretty sure"