First, I'm a Sir. Secondly, it is NOT the actor's job to check the firearm. It is the armorer's and his/her team. A Hollywood movie set is not the real world. In that world I agree completely with you about checking a firearm. But that doesn't apply on a movie set. The rules are very strict. These kinds of incidents almost never happen, and there's a reason why.
We’ll have to agree to disagree on that.
Gun safety is every gun handler’s job. Everywhere, anywhere, all of the time. Hollywood is no exception.
This movie set is the sight of a murder. It’s every bit the real world, no matter how “special” the players think they are.