That would have ticked me off too. The progressive movement has no moral compass. They want your kids to see it because they’re young and impressionable. That’s how they advance their agenda. Start at a young age and then by the time they’re adults they consider it normal.
I don’t have a good idea of what I’d do in your shoes but I’d dang sure do something. I would start with blasting the theatre owner but I wouldn’t stop there
If my people, who are called by my name, will humble themselves and pray and seek my face and turn from their wicked ways, then will I hear from heaven and will forgive their sin and will heal their land. 2 Chronicles 7:14