Nothing is accurate on tv or in films. It's all fiction. It's all created or recreated, or 'dramatization'.
I think my favorite of late is Walking Dead.
One pseudo old geezer (not a real old geezer, just plays one on tv) has a shotgun. And he stands there for about an hour and a half, firing away, pump action, I think, pump, shoot, maybe 40 to 60 shots. I lost count.
What kind of shotgun was that supposed to be?