There isn't so much a topic on it already, so much as many of the topic discuss this movie situation of movie/real-universes. But, yeah, it's there.
The deal is, in the movie universe, anything is possible. It isn't limited by the boundries of a realistic gun wound, or a realistic situation. Kill Bill for instance, 88 men? That kind of battle just isn't possible. It's simmilar to real life, but it just isn't the same. Cinematic magic ensues, and his movies become, well, in the movie world.