Exposure in film photography

Thanks, Spiderwort. Regarding camera shake, I should have specified that what I was referring to is the fact that if I'm shooting something with a shutter speed at 1/30th of a second, both my subject and I have to be still. Otherwise, I will get motion blur. So, if a moving film camera shoots something with a shutter speed at 1/24th of a second, why doesn't motion blur occur when people are doing normal things like walking (or doing anything other than remaining still)? Sorry to be so dense on this. I appreciate your very helpful comments.

Maybe I should ask that "Filmmaker IQ" guy on YouTube to do a video on exposure and shutter speeds in film photography.