How to shoot the knife in the TV series?

These are all made by the production designer in advance, which makes the actors look injured. For example, if he is shot by an arrow, he should first fix the arrow on the actor, and then use human visual error and certain photography techniques to make it look like what you see. Haven't you noticed that whenever the protagonist tries to take an arrow, the picture is not taken from the front? This is all done by stuntmen. In a word, movies are the continuation of human dreams.