Mental Floss:

What do Star Wars, The Lord of the Rings, Pirates of the Caribbean, Harold and Kumar Go to White Castle, Toy Story, Reservoir Dogs, Titanic, Anchorman, 22 Jump Street, and more than 200 other films and TV shows have in common? Not much besides the one and only Wilhelm Scream.

The so-called Wilhelm Scream is the holy grail of movie geek sound effects, a throwaway sound bite that had inauspicious beginnings and was revived in the 1970s and made into the best movie in-joke ever.

Once you recognize the scream, you’ll be amazed at how many movies use it.