Lombard improvising?
There's a nice, lighthearted telephone scene that cuts between Carole Lombard and Cary Grant. They're discussing the a great paycheck she just received and also her invitation to work in Paris.
Suddenly, Lombard grabs the air, cups her hand and slams it to the floor, like she's catching a bug and smashing it. It's an odd moment having nothing to do with the scene.
Anyway, Lombard was famous for being delightfully unpredictable on the set. Was she improvising or was there really a bug on set?