- I have no idea what you're talking about.
- Okay.

4 seconds sound clip from the Big Daddy movie soundboard.

You can hear this line at 01:02:01.233 in the Blu-ray version of the movie.

Quote context

[...]

- I could be on the scuba squad?

- Oh, sure! All you have to do is work hard.

- And don't tell a soul about the scuba squad, 'cause then everybody's gonna wanna join.

- And one more thing. Be nice to the delivery guy, would you? It's not his fault he can't read. Take care!

- Yeah, yeah, he told me to watch his boat for him.

- He said that he wanted to talk to you about some secret mission or something.

- I have no idea what you're talking about.

- Okay.

- How come I have to wear a bathing suit?

- I don't know. I don't know the rules with little kids and grownups and being naked... And just sit down.

- The good news is, you're starting not to smell like a foot anymore.

- I read something interesting today. You know that Benjamin Franklin invented bifocals? That's pretty cool, huh?

[...]