For the scene where Dan Quigley hauls Myra Gale across the apartment floor by her hair, and throws her out the door,
James Cagney taught his co-star
Mae Clarke an old stage trick. When Cagney grabbed hold of Clarke's hair (holding her by the top of her head), Clarke reached up and grabbed Cagney's wrist with both hands. This put her weight on Cagney's wrist, instead of on her hair. Clarke then held on to Cagney's wrist, screaming as he dragged her across the room.