The problem is, you don’t know what “no one should hear.” There are some things that are struggles for others, but not everyone. For example, I have no problem watching something that may lead others to sin, but for me, it does not. A good example of that is a woman in a topless scene. For me, as I am a straight woman, it is a non-issue. I don’t lust after her. It’s nothing I haven’t seen in my bathroom mirror or in a ladies locker room. My husband, however, it’s a different story. What may be a struggle for you or leads you to sin, won’t necessarily do that to another, so we have to be careful when defining what “no one” should see. This is why scripture states that all things are permissible, but not all things are beneficial. I personally can’t watch movies with suicide in them. I’ve missed a couple blockbusters because of that.
I apologize if I came off strongly

. I have too often gone to movies that I knew I could handle with some who knew they couldn’t and they made a huge scene about it. It wasn’t like it was a suprise for them, but they cheesed off everyone who saw that movie, and even I (their christian friend) was ready to ditch them.
I guess the whole point I was going to make is that when there is a new release, there are millions of resources out there to determine the content of the movie. There is no excuse in this day and age to disrupt the movie experience for others because we failed to do our research. And if we are caught off guard, there are a llot of better solutions that to disrupt people around us. In some theatres they’ll even throw you out for this. I myself have had to take “bathroom breaks” when a movie was too intense for me with some scenes that caught me off guard. V For Vendetta was one of those. I had to take several bathroom breaks, and from then on out I resolved to look movies up before I went.