ELI5- why do screens/lights flicker in videos taken by phone or even yt vids, but not in movies and professional productions?

Question

ELI5- why do screens/lights flicker in videos taken by phone or even yt vids, but not in movies and professional productions?

In: 674

Answer 1

[Beside post production. Tom scott does a good explanation of the effect.](https://www.youtube.com/watch?v=uzP8FFKpwQ0)