She's a ninja! : Riddick (2013)

"She's a ninja!" is what a want to exclaim when I see a TV show or a movie where, usually, a beautiful, small framed woman beats up some guy who is bigger than her. 

At around 1:03 in the movie Riddick (2013), the sequel to Pitch Black (2000) and The Chronicles of Riddick (2004), is an especially egregious example of this. The girl, Dahl played by Katee Sackhoff, after hitting the character Santana (Jordi Mollà) several times faces retaliation. He hits her, throws her on the floor and gets on top of her and she struggles futilely.

When they reappear in the next scene she is fine while Santana, a fully grown man who probably outweighs her by quite a bit, is bloodied, disheveled and has left a pool of his blood on the floor. How exactly she managed this is unclear.