10 More Disturbing Movie Reveals You Only Notice Rewatching

10. Teddy's Match Striking Slowly Reveals The Truth - Shutter Island

Depicting the tale of a Deputy U.S. Marshall seemingly throwing himself into the middle of a very real missing person investigation on an island containing an institution for the criminally insane, Martin Scorsese's Shutter Island is one of those movies that simply needs to be revisited after your first experience.

Once you learn of the jaw-dropping twist - that Leonardo DiCaprio's Teddy Daniels is actually a patient on the titular island and the Andrew Laeddis who killed his wife after she murdered their children - just about every single frame of this film becomes infinitely more compelling.

And one of the biggest giveaways that Daniels/Laeddis was really just being allowed to explore this pretend investigation as a way of potentially reminding himself who he really was could be seen during the moments the character shared the screen with matches.

You see, in the first half of the movie, the Deputy Marshall is never shown using a match to light his own cigarettes, with his parter Chuck Aule/Dr. Sheehan instead lighting them for him. 

Along with the doc likely feeling it was wise to keep a box of matches away from his patient, this could also point to Daniels connecting fire with the death of his wife - Laeddis had apparently killed her in a fire he'd created.

But watch closely as the film wanders past the halfway point and it seems that when Laeddis' treatment starts to kick in, he begins to set off his own matches, subtly revealing that he wasn't Daniels at all and his true self wasn't quite as affected by the flames.