I'll never understand the logic behind teal-and-orange colour grading.
Hollywood likes to use it because the two colours are ostensibly complementary, that they make the screen pop when they're put together. However, the complementary colour of teal is coral, not orange. Hell, I'll bet teal-and-coral grading would actually go over better than teal-and-orange since coral's closer to natural skin tones than orange is.
Hollywood is run by colour-blind idiots.