Pitiful I know, but I get very stressed watching films with plot twists and the like. Sometimes, I'll stop a film or series and read the plot on Wikipedia because I have to know that everything is going to be OK. Like Anna and Mr Bates in Downton Abbey. I had to read their whole story once the romance started.
I'm planning to go and see Avatar 3 next month. Thinking of reading the plot beforehand to prepare myself for any dramas.
YABU - Pull yourself together, it's only a few hours of nerves
YANBU - What does it matter if you enjoy yourself and enjoy a good story