In the entertainment industry it's called; "artistic license" or "suspended disbelief".
In many film-TV productions, directors/producers/actors/prop masters etc use different methods to propel the story or heighten the drama. Sound FX, CGI(computer images), prop or fake guns, lighting, etc all add to the final scene.
If you ever saw a action or police film/tv production you know there are a lot of complex factors involved.