Though mainstream horror has a reputation for being incredibly obvious and on-the-nose - and most often, that's absolutely right - there's no denying the ability of talented filmmakers to inject their bold visions with extra meaning below the surface.
No matter the genre, we all love watching movies packed with secrets which make repeat viewings more rewarding. At their best, these subtle secrets can help audiences peel the film back to reveal additional layers of meaning they never knew were there.
These 10 horror films, all acclaimed classics of the genre in their own right, hid fascinating secrets in plain sight, from perfectly-placed Easter eggs to disturbing story implications which only made things that much more unsettling.
Thanks to a little help from the eagle-eyed folk at /r/MovieDetails, you'll never watch these 10 horror movies quite the same way again once armed with the knowledge of their low-key secrets.
And if you somehow managed to catch any of these details on your own, give yourself a firm pat on the back...
Stay at home dad who spends as much time teaching his kids the merits of Martin Scorsese as possible (against the missus' wishes).
General video game, TV and film nut. Occasional sports fan. Full time loon.