I don't agree. I think you should get angry when things don't make sense.
The things you describe are not good examples, as they are all possible. Metal can support things, and people can survive crashes in vehicles (a little bit of bending of those rules is ok, i.e surviving very large crashes, or supporting very large things)
The type of thing I am talking about is, say for example, The Expendables! Where a man is sliding down a wire with a AK47 in one hand and accurately killing men who are in cover, whilst all their bullets seemingly miss.
Your right it's nothing to do with how intelligent I am, but I just prefer not to be insulted by assuming I am thick to begin with and that I won't notice the stupidity of plot.
If someone has to turn off their brain then something is definitely wrong imo.