Wilhelm scream

The Wilhelm scream ("Aaagh!") is a scream sound effect which was introduced in the 1951 western , a non-Disney film. It is often used as an audio in-joke in various works, including many animated films produced by Disney, as well as several Lucasfilm productions prior to Disney's acquisition of the company.

Disney

 * Beauty and the Beast (1991) - Heard during the battle between the villagers and the enchanted servants in the Castle shortly after Chip saves Maurice and Belle. A similar scream can also be heard uttered by Gaston when he fell into the moat.
 * Aladdin (1992) - Heard when the Genie raises the Sultan's palace while being controlled by Jafar.
 * Runaway Brain (1995) - During Mickey's video game when Dopey is defeated by the Witch boss.
 * A Goofy Movie (1995) - During "On the Open Road" when Goofy drives into a construction site.
 * Hercules (1997) - Heard when the Cyclops arrives at Thebes.
 * The Little Mermaid II: Return to the Sea (2000) - Heard by one of the sailors when Morgana's lair emerges from the waves right in front of Eric’s armada.
 * Return to Never Land (2002) - Heard once by Captain Hook
 * Pirates of the Caribbean - Heard through every film.
 * Enchanted (2007) - Heard from a man falling backwards when Narissa transforms into a dragon. (A Goofy yell can be heard at the same time.)
 * Bolt (2008) - Heard offscreen on an A-Team episode involving BA Barcus while Rhino was flipping through channels.
 * Princess Protection Program (2009)
 * Tron: Legacy (2010) - Heard in the End of Line club and the Rectifier.
 * The Nutcracker and the Four Realms (2018) - Heard when the main characters are running away from the mice and one of them gets dragged into a hole in the ground.

Pixar

 * Toy Story (1995) - When Buzz Lightyear gets pushed out the window by a lamp (barely audible); also when RC is flying in the air toward the moving truck and hits Potato Head.
 * Cars (2006) - When a car gets zapped by a laser during Lightning McQueen's daydream of being sponsored by Dinoco. (Low pitched.)
 * Your Friend the Rat (2007) - When an astronaut gets frightened by a rat during the song "Plan B".
 * Lifted (2007) - When Ernie falls off the crater after the credits.
 * Up (2009) - When the dogs are falling off a cliff while attempting to chase Carl Fredricksen and Russell with Kevin, a Wilhelm scream can be heard.
 * George and A.J. (2009) - When one of the houses burrows down, the Wilhelm scream can be heard.
 * Day & Night (2010) - During the movie scene when the cowboy shoots a man off-screen.
 * Toy Story 3 (2010) - During the opening scene, while Andy and his toys are watching a "scary movie" during the "You've Got a Friend in Me" sequence, a Wilhelm scream can be heard.
 * Cars 2 (2011) - When the cars in the Ye Left Turn Inn beat Grem and Acer up.
 * The Legend of Mor'du (2012) - When Mor'du throws down soldiers from a rock, the Wilhelm scream can be heard.
 * Monsters University (2013) - When Mike unknowingly runs over a student with the floor waxer.
 * The Radiator Springs 500½ (2014) - When the Baja pros fall down a cliff while chasing McQueen.

Star Wars
The Wilhelm sound effect is played at least once in every Star Wars movie. This covers the movies produced under the Disney company.
 * Star Wars: The Force Awakens (2015) - Heard during Finn and Poe Dameron's escape from the First Order.
 * Star Wars: The Last Jedi - Heard during the duel between Luke Skywalker and Kylo Ren. It's hidden, though.

Other

 * Avengers: Infinity War (2018) - Heard when Iron Man blows Ebony Maw out of an opened gap, albeit at low volume.

Shows

 * Kick Buttowski: Suburban Daredevil (2010) - Used more than once.
 * Randy Cunningham: 9th Grade Ninja (2012) - Used in several episodes, such as "Gossip Boy" and "Pranks for Nothing".
 * Wander Over Yonder (2013) - Scream heard once during Lord Hater's army against Emperor Awesome's army in "The Picnic".
 * Star Wars Rebels (2014) - Screamed during the pilot episode by a Stormtrooper.
 * Penn Zero: Part-Time Hero (2015) - Heard once in every episode.
 * Future-Worm! (2016) - Heard in the episode "Future Danny and the Ghost Pirates of Tau Ceti".
 * Sofia the First (2015) - heard in episode "New Genie on the Block" when Sofia, on the police carpet, runs into people, while chasing Kazeem.

Other

 * Star Tours: The Adventures Continue - when a Scout Trooper on his speeder bike runs into a branch by crashing.