I’m trying not to be spoiled by blockbusters until I finally read/watch/play them. It’s harder than it seems, but I’ve managed it on more than one occasion. I got most of the way through Undertale without being spoiled, and my experience was all the better for it.
Though I have to admit there’s little middle ground with games for me. It’s either a bumbling blind playthrough or a robotic walkthrough.
Another one where I wasn’t spoiled before experiencing it was the name of the traitor in Payday 2′ Hoxton Revenge. Then again, I only had a <30 minute mission to sit through, not a long, detailed game.