I have a hard time watching disaster type movies now, I have become far too critical so I end up laughing at such absurdities as you point out. Even as a child I had this problem, I remember a long ago comic book in which Superman picked up a car full of crooks and flew off with them. The problem was he picked it up by the little metal channel that used to be between the front vent window (which no car has had for nearly forty years) and the main window on the front door. Young people may not be familiar with this but it is doubtful that that piece of metal would have supported even ten percent of the weight of a car.
Then there was the time that lovely Lindsay Wagner, the Bionic Woman, decided to push over a huge tree with her two hands. I suddenly collapsed into laughter causing my wife to look at me as if she thought I was nuts. I tried to explain to her that even if the woman had the strength of Superman or of a bulldozer she would only have pushed her own feet into the ground, you cannot exert tons of force with a 120 pound body unless you have something to work against. She seemed to think I was just being hard to get along with.
I never bought the premise of the Bionic Woman and the Six Million Dollar Man. Even if their arms had fantastic mechanical strength, they were attached to a flesh-and-blood torso that couldn't possibly hold up.
All I saw in my mind’s eye was calcium dust.
The bad guy goes poof and disappears in the explosion but somehow his empty boots remained undisturbed and upright LOL