10 Obscure Movie Secrets That Took Years To Discover

8. The Cockroach - Ratatouille

Obviously, a lot has already been said of Pixar's uncanny knack for tying their movies together in such clever - occasionally not entirely obvious - ways (to the point that a great Shared Universe theory was released). The studio then got in on the joke eventually by releasing a super cut that fed into the idea that all their movies were set in one movie.

And though there's an enthusiastic community around Easter Egg hunting in Pixar movies, they actually revealed some that nobody had spotted, including a very brief cameo in Ratatouille.

A year ahead of his debut in Wall-E, the robot's cockroach companion actually turns up in Linguini's apartment for a matter of seconds. And while you could claim it was just any old cockroach, Pixar themselves confirmed it's one and the same. So it seems roaches really are immortal.