It wasn't Cole Porter. It was Gillespie and Coots.
5 seconds sound clip from the Trail of the Pink Panther (1982) movie soundboard.
You can hear this line at 00:18:52.573 in the Blu-ray version of the movie.
Quote context
[...]
- Now, how do you suppose you are going to get him out of there?
- I don't know. I don't suppose. You are supposed to suppose and give me all the answers.
- Look, the commissioner wants him in Lugash. Well, let the commissioner handle it!
- I don't want to know. I don't want to be there. I want to be here with you.
- What are you thinking, Doctor?
- It wasn't Cole Porter. It was Gillespie and Coots.
- Yes?
- The deputy commissioner to see you.
- The commissioner? Send him in immediately.
- I want to discuss the Pink Panther robbery.
[...]