As a consumer of rather than a participant in drama, I would call it suspension of disbelief—ie the thing that allows us to feel fear when the hero is in peril, even though we know rationally that the gun is a prop held by an actor.
As a consumer of rather than a participant in drama, I would call it suspension of disbelief—ie the thing that allows us to feel fear when the hero is in peril, even though we know rationally that the gun is a prop held by an actor.