Good Morning, Boys!
That is from the film called Good Morning, Boys! (United Kingdom 1937) M/MMMMF young guys and one woman, one slap on their bottoms, position of sitting and leaning on a bar counter. He sends them away by that smack. The lady and some of the guys are grabbing their slapped asses right after that. He didn't know there was a woman at the end of the line of guys, so he apologized to her. English language https://ok.ru/video/9295429372603 and https://vkvideo.ru/video-229942838_456239185?list=ln-aE8WfinihItY0cPUko