Piracy wouldn't be my worry at all because I won't be pirating.
In the woman's case I wouldn't be commiting piracy by defending her.
In the article it seemed that the theater employee had confronted the woman before the police arrived .
It didn't say if any theater employee laid hands on her.
I think it would be just the opposite. In my state I'm allowed to come to the defense of someone being assaulted. I would wait till a theater employee had made physical contact or appeared they were about to.
All I really need to prove is that there was a probable assault about to happen.
Also why would there be all the video cameras ready to use inside the theater? If the video cameras were the theaters & they used them while the movie was playing they would be guilty of piracy.
I think the majority of people are like me & would be on the side of the woman. So would only take or produce video in her favor.
What I would start with in defending her is to stand between her & any theater employees while she left. Then if they decided to make contact with me " take them out".
The police wouldn't be who should have been called or the ones to make the arrest. The recording of the movie wouldn't violate local ordinences or even state law in most cases. The FBI would be the proper authority to call & make the arrest.
I can just imagine the FBI's response to the call. Something like this:
I have a woman who recorded 3 minutes of a movie & I want you to come arrest her.
To give an example of the feds not wanting local law enforcement enforcing federal law:
Look at what's happening in Arizona with their deciding to enacting a state law almost identical to federal law in illegal immagramts & enforcing it.
The federal government has long told border states that it is their job to enforce immigration laws & for the states not to enforce it for them. In other words if a state arrests an illegal & sends them back accross the border the feds jump on the state. The feds just ignore the actual law.
So why not let the feds handle all federal law enforcement . Like in this womans case?
Since it's a different state I won't be on the jury. If I was she has a case providing I could sway the other jurors to my opinion.
Actually that would be theft. The theater has no legal authority to confiscate any persons property. That is a denial of due process. Property can only be legally seized by some form of court order. There are a few exceptions involving imminent danger & self-defense. Taking away a persons gun that is threatening another person for example.
For law enforcement probable cause but that is often abused.
Last of course I wouldn't have tried to physically stop law enforcement officers but I probably would have tried to talk them out of arresting the woman.
Security officers are a different matter. They are private employees of a private company & have no greater legal authority that any other citizen.
Some of them just think they do.