That doesn't mean you're deep or anything.
4 seconds sound clip from the When Harry Met Sally... movie soundboard.
You can hear this line at 00:06:00 in the Blu-ray version of the movie.
Quote context
[...]
- I know, you're probably one of those cheerful people who dot their I's with little hearts.
- I have just as much of a dark side as the next person.
- That, my friend, is a dark side.
- That doesn't mean you're deep or anything.
- I mean, yes, basically I'm a happy person.
- So am I.
- And I don't see that there's anything wrong with that.
- Of course not. You're too busy being happy.
- Do you ever think about death?
- Yes.
[...]