You don't have to start talking it down because the idea is not for sale.

6 seconds sound clip from the Holiday Inn (1942) movie soundboard.

You can hear this line at 01:23:20 in the Blu-ray version of the movie.

Quote context

[...]

- Gentlemen, even though you haven't seen Miss Mason dance, I can assure you...

- Hollywood is always interested in new ideas and we think this is a honey.

- Frankly, we'd like to do a picture based on the Holiday Inn.

- The idea behind it, how it works, the special holiday songs.

- Of course, it's purely a speculative thing, far from foolproof and we can't afford to pay too much.

- You don't have to start talking it down because the idea is not for sale.

- Well, maybe I haven't explained enough.

- We expect to use Mr. Hanover and his partner in the picture.

- Well, I don't know how the others feel but I'd like to keep this little setup just the way it is.

- Jim, would you be decent just once and let somebody else around here have a chance?

[...]