A childhood belief about adverts

Two beliefs, both involving banner ads.

When I was eight, I saw ads for the then-new streaming service Now TV. The ads said "Now Showing" above an image of a movie. I took this to mean that you could ONLY watch the movie shown and literally nothing else on there, and it got replaced with a different movie once a week or so.

Around the same time, I saw an ad with a photo of a little girl and a tagline that was something along the lines of "Lift up her voice. Lift up her life. Give someone else/a(n abused) child/whatever (memories are hazy) a voice. Yours." I took the tagline literally and thought the girl was mute and the ad was for a service that allowed you to literally give a mute child your voice. I wondered why someone would want to just give up their voice like that, even if it was for a commendable reason (even though I now know voice box transplants are actually possible)! It was only when I saw the ad again a few years later that I realised it was actually for a child abuse charity.