Sounds Like There's a Hidden George Lucas Cameo in The Rise of Skywalker

Mark Hamill and George Lucas
Photo credit Photo by Michael Tran/Getty Images
By ALT 92.3
Star Wars: The Rise of Skywalker is up for a handful of Oscars this weekend: best original score, best visual effects, and best sound editing. The film's sound designers did an interview with Good Morning America during the leadup to this weekend's awards, where, among other things, they revealed that the movie may contain a secret sound from the creator of Star Wars itself. 
See way back in the 70s, there was a distinctive scream from George Lucas that made its way into his film American Grafitti. A few years later, there was a different movie scream (known as The Wilhelm) that the original Star Wars sound designer wove into that film and a bunch of others. NOW, according to this interview, the next generation of Star Wars sound geniuses has apparently replaced that sound with... George Lucas screaming. INCLUDING, allegedly, somewhere in the latest film in the franchise. Here's the whole interview - it's full of great info about what you heard in The Rise of Skywalker
And here's the OG Star Wars sound designer, Ben Burtt, sharing how some of the most iconic sounds in the galaxy were made!