Student or Learner
this is a subtitle from "June 4 CNN Students News"
Number one movie at the U.S. box office right now was "San Andreas". It's a disaster film starring a massive earthquake. It also stars the Rock, so that's kind of a built-in fun. But exactly how realistic is this work of fiction. CNN's Jeanne Moos spoke to a seismologist.
A tsunami bearing down on a Golden Gate Bridge, skyscrapers collapsing. Can't fault an earthquake blockbuster for going a little overboard. And before it falls through the cracks.
But there's one thing the scientists love. The movie repeats the "duck, cover and hold on" mantra experts recommend. And if it makes people prepare, what is a little earthquake earthquakery
The sentences of the red color, I am not quite sure the meaning ?
***** NOT A TEACHER *****
This is how I interpret those sentences.
 It is not fair to criticize the movie for exaggerating things, for the purpose of the movie is to scare you about big earthquakes.
 But it does later become absolutely absurd or ridiculous. (In other words, it shows things that will never happen in reality.)
 In American schools, for example, students are taught to "duck, cover, and hold on." That is to say, if there is an earthquake, a student should get under his/her desk, protect the head, and hold on with his/her hands.
 Therefore, since the movie DOES remind everybody about the "duck, cover, and hold on" idea, then we should EXCUSE the movie for showing some scenes that are ridiculous. After all, it is ONLY a movie to entertain (and scare) people. If it helps us to remember that we should prepare for earthquakes, then that is a GOOD thing.