You see a man putting a bag under a table. Two man arrive, sitting at the table, you wait for the bomb to explode because the bag must have a meaning. The meeting ends, the men stand up, one is killed by headshot.

And your scene depends on the characters. Is one the main character? Highly unlikely he get killed.

It's even worse if it's a TV series. Main character is strapped to a bomb? No problem. Guest star is strapped to a bomb? Might get killed. Unknown supporting role strapped to a bomb? Sure death. I think that was part of GoT's success. Surprise deaths. And nudity of course.

If everything has a meaning even the chosen actor is important. Known actor in a minor role? Surely gets important.