Well, you're a bad liar, but thank you anyway.
4 seconds sound clip from the Halloween III: Season of the Witch (1982) movie soundboard.
You can hear this line at 00:22:21.532 in the Blu-ray version of the movie.
Quote context
[...]
- Two more days to Halloween, Halloween, Halloween...
- What's the matter? Don't you have any Halloween spirit?
- No.
- Hi.
- Hello.
- My name is Ellie Grimbridge.
- I know. One of the nurses told me I could find you here.
- I saw you at the funeral. Thank you.
- I'm sorry about your father.
- Did my father say anything to you the night he died?
- Yeah. He, uh... Yeah. He said, Tell Ellie I love her.
- Well, you're a bad liar, but thank you anyway.
- And what he said was... They're gonna kill us all. And in a little while, he was dead.
- And I don't know what the hell is goin' on.
[...]