Aladdin official Facebook page

Casual moviegoers may catch a glimpse of a special scene or feature if they're willing to stick around while the closing credits roll, but movie buffs take the hunt for hidden images and nods to other productions to a new level — often referring to these as "easter eggs."

During the past few decades, Disney Animation and Disney Pixar have created more than enough "easter eggs" to keep fans on the lookout and eager to share their finds.

Sites such as HiddenMickey.org and blogs.disney.com highlight these movie scenes with hidden characters and items from other Disney productions.

Film fans and compilers of this information have noticed that some of the hidden images are not recognizable immediately after the film's release because the item or character is from a future Disney movie.

Some staple examples, though, are more easily recognized and appear in multiple movies, such as the Pizza Planet truck from "Toy Story" (which is in most every Pixar film), the Pixar (Luxo) ball, and a silhouette of Mickey Mouse.

Because of the popularity of these hidden images, books have even been published pointing out the special scenes.

Although this is far from a complete list, enjoy 30 scenes featuring Disney characters and items in movies other than their own.

"101 Dalmations" (1961)
"One Hundred and One Dalmatians" official Facebook page

The Lady and the Tramp appear in the “Midnight Bark” scene of "101 Dalmatians." Lady is in the foreground, and Tramp is to the right.

"The Rescuers" (1977)
YouTube

According to Finding Mickey, this image of Bambi and his mother appears during the song "Someone's waiting for you" in "The Rescuers."

"The Little Mermaid" (1989)
disney.wikia.com

The king and the grand duke from "Cinderella" are present in the wedding scene between Eric and Ursula, who is disguised as her human alter ego Vanessa.

"Aladdin" (1992)
Aladdin official Facebook page

The Genie finds Sebastian from "The Little Mermaid" in his "Royal Recipes" book, and a snippet of "Under the Sea" plays.

"Aladdin" (1992)
disney.wikia.com

The Beast from "Beauty and the Beast" is among the trinkets the Sultan is stacking before Jafar bursts into the room and causes the toy tower to fall.

"Aladdin" (1992)
disney.wikia.com

When Aladdin tells the Genie he'll use a wish to set him free, Genie reacts with "Yeah, right" and a Pinocchio impersonation.

"The Hunchback of Notre Dame" (1996)
The Hunchback of Notre Dame official Facebook page

Belle from "Beauty and the Beast" is seen near the lower right corner in a crowd scene when Quasimodo sings "Out There."

"Hercules" (1997)
disney.wikia.com

While Hercules poses for a vase painting, he wears the pelt of Scar from "The Lion King."

In "The Lion King," Zazu mentions Scar would "make a very handsome throw rug."

"A Bug's Life" (1998)
blogs.disney.com

The Pizza Planet truck from "Toy Story" makes an appearance in almost every Pixar film, according to The Huffington Post.

Here, the truck is parked to the left of the trailer where bugs resist the lure of an electric bug zapper.

"Tarzan" (1999)
Tarzan official Facebook page

Terk uses Mrs. Potts and Chip from "Beauty and the Beast" to make music in the "Trashing the Camp" scene.

"Toy Story 2" (1999)
Virginmedia.com

The toy repairman who fixes Woody in "Toy Story 2" first appeared in the 1997 Pixar short "Geri's Game."

"Toy Story 2" (1999)
Virginmedia.com

The book Mrs. Potato Head reads to the Toddle Tots shows a scene from "A Bug's Life."

"Monsters, Inc." (2001)
blogs.disney.com

Boo hands Sully a toy in "Monsters, Inc." that looks like Nemo. The film "Finding Nemo" wasn't released until 2003, two years later.

Boo also gives Sully a Jessie doll, from "Toy Story," along with the Pixar ball.

"Monsters, Inc." (2001)
blogs.disney.com

When Randall rushes into a room while chasing Mike, Sully and Boo, a Nemo figure can be seen just beyond the child's door. This one is tricky. Look closely.

"Monsters, Inc." (2001)
blogs.disney.com

Randall ends up in the trailer from "A Bug's Life" after opening a door in pursuit of Mike, Sully and Boo.

The Pizza Planet truck is again parked to the left of the trailer.

"Lilo and Stitch" (2002)
Pinterest.com

A poster of Mulan hangs in Lilo's bedroom in Disney's "Lilo & Stitch."

"Finding Nemo" (2003)
disney-hiddensecrets.tumblr.com

In the closing credits of "Finding Nemo," Mike Wazowski swims by with flippers, a snorkel and a one-eyed goggle.

"Finding Nemo" (2003)
eeggs.com

When Gil is describing his escape route in "Finding Nemo," the Pizza Planet truck from "Toy Story" can be seen through a plastic bag.

"Brother Bear" (2003)
YouTube

Kenai charges through a fishing net on a wooly mammoth, releasing salmon and a shocked Nemo.

"The Incredibles" (2004)
blogs.disney.com

While Mr. Incredible fights Syndrome's Omnidroid, a shot shows a faceless Doc Hudson from "Cars" parked on the left.

"The Incredibles" was released two years before the "Cars" release date in 2006.

"Ratatouille" (2007)
blogs.disney.com

The shadow of Dug from "Up" is seen when Remy from Ratatouille sneaks into a house.

"Up" was released two years after Ratatouille in 2009.

"Wall-E" (2008)
BuzzFeed

The Pizza Planet truck from "Toy Story" appears in "Wall-E" when Eve scans it while searching through trash.

"Up" (2009)
blogs.disney.com

A little girl is seen with the Pixar ball while Lotso from "Toy Story 3" sits by her bed.

Lotso's appearance comes a year before the "Toy Story 3" release date in 2010.

"The Princess and the Frog" (2009)
disney.wikia.com

In the top right corner, a woman shakes out Aladdin's magic carpet during the opening scene of "The Princess and the Frog."

"Cars 2" (2011)
blogs.disney.com

A scene in "Cars 2" mimics the town square where Gusteau's restaurant from "Ratatouille" is located.

The restaurant name in this scene, "Gastow's," is also a tribute to the French chef from "Ratatouille."

"Tangled" (2011)
FindingMickey.com

In the center of this scene is a three-legged spinning wheel, a tribute to Disney's classic "Sleeping Beauty."

"Tangled" (2011)
disneypinforum.com

In the top right above Flyn Rider, the puppet Pinocchio is sitting in the rafters.

"Brave" (2012)
cinemablend.com

The Pizza Planet truck makes an appearance on the table of the witch from "Brave."

"Monsters University" (2013)
blogs.disney.com

The Pizza Planet truck is parked on the left side of the Jaws Theta Chi fraternity house during the party scene in "Monsters University."

"Frozen" (2013)
blogs.disney.com

In Disney's latest film, "Frozen," Rapunzel and Eugene from "Tangled" make an appearance during Elsa's coronation in the lower left corner.

Disney movie quiz: 25 quotes from animated favorites

Want more Disney trivia?

Click through these 25 quotes to test your Disney knowledge.