No salva a nadie

Here's a fun example of the influence of Catholicism on Chilean culture.

If you want to find out if something's any good, you can say, "¿Esta cuestión - salva o no?" (= literally "That question - does it save or not?"). And if it's no good, the answer would be, "No salva a nadie." (= "It won't save anybody."). You can use it for films, people, whatever.