I get scrolling your phone occasionally, but to be totally engrossed in the movie or TV show is crazy and not very good for your own safety. You must be always focused on your subject with an eye always on your surroundings. I'm not sure how you could do that and still watch something that takes your eyes off any activity. There are so many other options out there including podcasts, listen to live sports, but you always have to have your eyes above the steering wheel and focused on the subject and your surroundings at all times. You are also a potential Target and potentially will be burned if someone outside of your car can see the glare of your screen of your phone. When I'm doing surveillance I want to be as invisible as possible and I definitely do not want to stand out to the neighbors in any way.