“- Marv Merchants: He's a kid. Kids are stupid. I know I was.
- Harry Lime: You still are, Marv.”
Daniel Stern - Marv Merchants
Joe Pesci - Harry Lime

“- Wendy Darling: Sir, you are both ungallant and deficient!
- Peter Pan: How am I deficient?
- Wendy Darling: You're just a boy.”
Rachel Hurd-Wood - Wendy Darling
Jeremy Sumpter - Peter Pan

- Shredder: Babies! They're babies!
- Professor Jordan Perry: What did you expect? They'd come out quoting "Macbeth"?
- Shredder: They are stupid!
- Professor Jordan Perry: Well, they're not stupid, they're infants.
François Chau - Shredder
David Warner - Professor Jordon Perry

“I want a girl who's smart, a girl who can teach me things. I hate stupid women. You know why? You marry a stupid girl, you have stupid kids. You don't believe me? Follow a stupid kid home and see if somebody stupid don't answer the door.”
Jerome Benton - Tricky

“- Paul Verrall: Nobody's born smart, Billie. Do you know what the stupidest thing on Earth is? An infant!
- Billie Dawn: Whadaya got against babies all of a sudden?”
William M. Holden - Paul Verrall
Judy Holliday - Billie Dawn