Why must reality go out the window in movies unnecessarily?

[Hawkguy]

Originally Posted by Frostmeister

I know 'it's just a movie', but c'mon.
Was watching Iron man the other day to prep for Iron Man 3. Iron man falls from thousands of feet, the antagonist too, and every one walks away? Stark gets splattered to a wall, and nothing. Also he struggles to reach his original fake heart and can barely lift it, then when he gets it, he smashes the case with all his strength.

I don't really understand this...nothing else in that film is realistic, why would this part be an issue over all the rest?

I don't think it makes sense to complain about a fantasy/sci-fi/action film lacking reality...if they weren't lacking in it, they wouldn't be a fantasy/sci-fi/action film