The Sure Thing (1985)

Continuity mistake: When John Cusack is getting ready for his date with Daphne Zuniga, he unzips his trousers to tuck in his shirt twice.

Continuity mistake: When John Cusack is in the bar buying the other guys drinks, his stationary beer on the counter changes positions several times. Half the time the handle of his mug is facing away from him and the other half it is to the side.

Continuity mistake: When John Cusack is sitting dejected after he jumped into the pool and Daphne Zuniga comes down the stairs, the bangs of his wet hair change position three times from the wide shot to the close-up, to the next medium shot. (00:13:15)

Alison: You didn't sleep with her?
Gib: Still seeing Jason?
Alison: Broke up.
Gib: That's too bad.
Alison: You didn't sleep with her.
Gib: Wasn't my type.

Gib: Sorry I'm late. There was this big problem... and I'm late because of it.

Gib: I'm gonna miss you, Lance.
Lance: It's your own fault, you know. You should be coming out to California with me.
Gib: Yeah, right. Get a totally bitchin' education out there, dude. California. You could be coming to New England with me, you know.
Lance: Are you crazy? The Ivy leagues stink. All they got there are those ugly intellectual girls with Band-Aids on their knees from playing the cello. No thank you.