Nothing classes up the joint like a clean-cut young couple.
5 seconds sound clip from the TRON (1982) movie soundboard.
You can hear this line at 00:18:55 in the Blu-ray version of the movie.
Quote context
[...]
- Flynn's gonna be a part of history, all right!
- Hey, Flynn, how'd you do it?
- Nothing classes up the joint like a clean-cut young couple.
- You can't hear yourself think in here. Come on.
[...]