Now why don't you be a good boy and go back and sit down?
4 seconds sound clip from the The High and the Mighty (1954) movie soundboard.
You can hear this line at 01:08:48 in the DVD version of the movie.
Quote context
[...]
- Troubles? Wait till I tell the Good Neighbors about this.
- I was almost asleep when someone pulled the champagne cork.
- This could become interesting.
- Things were pretty interesting before this happened, dearie.
- Two apes were trying to kill each other!
- Now why don't you be a good boy and go back and sit down?
- I'm sure everything will be all right.
- They'll come back from the flight deck and explain in a minute.
- I'm just gonna keep this for you till we make San Francisco.
- You can get in plenty trouble with them things.
[...]