I'm with you on spoilers. Like you, I'm especially vulnerable to them. Case in point: my children once spoiled what I'm sure would have otherwise been an exceptional ride by saying: "Dad, you'll live this movie. It has a lot of plot twists". That was enough to have me predicting (correctly) all of the major surprises in the plot, instead of riding with the movie.

It doesn't take much to be taken out of immersion and that willing suspension of disbelief, and back into the meta state.