I've previously posted the catfight in the old black and white movie "It's a Wonderful World" - not to be confused with "It's a Wonderful Life". The link is now dead, so I'm reposting it here. The catfight starts at 1:23:25.
https://ok.ru/video/265695857315If you watch it in slow motion, you can better appreciate the villainess's panic when her gun jams, and when the feisty heroine is closing the distance between them. The good girl disarms, overpowers and KO's the villainess, and then sits astride bad girl, who's flat on her back, out cold.
There's a great scene where the villainess is dragged to her feet, dazed and confused, and has a look of absolute despair on her face. I can only imagine her rage and frustration: she had the gun, but got disarmed, overpowered, KO'd, and pinned by the heroine. She's mixed up in at least one murder, so in a few moments she's gone from a position where she was looking at a life of luxury, to where her defeat had condemned her to a life sentence in prison.