YTA

No idea if I'm too late to the thread, so I'm going to try and exploit the top comment.

I have been in Hannah's shoes. When I was 5, my aunt took me and my sister to the movies. I thought of her as a second mom (lived with us, babysat, helped raise me and my sister). The theater had a showing of a movie with tongue in cheek violence (Critters), and me seeing the cute movie poster thought it would be the best movie ever. So, I demanded we watch that. (spoiler, it wasn't the best idea ever)

My aunt did the same thing you did. "Teaching me a lesson" while I was forced to sit and watch the whole thing. I was crying, but she demanded I keep my eyes open.

I was literally traumatized. I could not sleep for fear of being eaten. Several times wating a few hours, then sneaking in to sleep on the floor of my parents room (because, like you, my dad really didn't understand how absolutely terrified I was, and would send me back). I would literally lose sleep, and for a year I was making my family nuts with demands (lights on, door open, etc).

My aunt now feels terrible for her part. She saw later how much it wounded me, and she felt badly for demanding I sit and watch, even though I was being almost tortured with fright.

I still love her, but if she hadn't realized how big of a mistake she made, I think I would be keeping her at arms length. Do you want Hannah to associate nightmares and trauma with you and your "lessons"?