You've got to stop this clowning.
4 seconds sound clip from the At War with the Army (1950) movie soundboard.
You can hear this line at 01:08:13 in the DVD version of the movie.
Quote context
[...]
- Come on, let's go. You're holding up the detail. All the guys are waiting.
- On this side, are you crazy? On this side! Stay here now!
- Korwin! That ain't regulation.
- You've got to stop this clowning.
- All right you guys, keep it down low.
- Hey! Korwin! What happened to Korwin?
- Hey Korwin! Hey hey Korwin! Hey Korwin, this way.
- Alright, let's go. Come on. You're holding it up. Look alive there. Come on!
[...]