Some people do not know how to behave in a movie theater . It seems to be an ongoing problem that's gotten worse post-2020. It's like people were alone for so long during that period that they forgot how to act once they started doing activities outside the house again. Theater patrons have never been perfect. But these days, you can expect to see a half dozen bright cell phone screens in the crowd. It's so strange that people will pay money just to go sit in a theater and stare at their phones…