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Movie theaters have a very simple etiquette. Don't talk, silence your phone & keep it put away. Be mindful & respectful to others. At first it was harmless, people would briefly clap to a Stan Lee cameo and continue with the movie. As marvel movies got more popular so did clapping for Stan Lee cameos which went on longer than it should and this is where the Stan Lee effect began. It became obnoxiously normal for people to lose their shit when Stan Lee was on screen to where movie etiquette was completely forgotten. And now the Stan Lee effect has spread to different movies for example Shazam! After a really cool reveal one guy started clapping really loudly then the whole theater started clapping and continued to clap over a few seconds of dialogue. That's TOO MUCH CLAPPING! JUST CLAP AT THE END!
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