The Greatest Story Ever Told. Epic film from the 1960s about the life of Jesus. And Channel 5 needed to warn us. I don't know how I'd survive if Channel 5 wasn't holding my hand.
It's the same in everyday life, met office telling us it's going to be red hot so stay out of the sun or severe storms are on the way so don't travel if you don't need to. Everything comes with a warning nowadays, it's as if we can't decide things for ourselves anymore without all the health and safety wwrnings
I watched Snowflake on Apple TV, it's about the early days of the crack cocaine epidemic in LA. It's full of violence, murder, racism, sexism etc. The one warning they give at the start of each episode? 'This program contains scenes with tobacco depiction'. Edit - Snowfall.