Fans of Disney's animated hit Zootopia have rushed to scoop up the DVD and Blu-Ray — and have been shocked by one of the mega-hit's deleted scenes, which casts the entire flick in a new, depressing light.

Zootopia, which broke records by becoming the twenty-fifth highest-grossing movie of all time, is a generally upbeat movie about anthropomorphic animals living in a Utopian society.

But as the newly-revealed deleted scene shows, Zootopia — like nearly any imagined Utopian society — has some not-so-nice secrets that keep it functioning as such an 'idyllic' place.

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What the? Fans have been distressed by a deleted scene featured on the DVD and Blu-Ray for the Disney animated film Zootopia

Backstory: The generally upbeat movie takes place in a Utopian society of animals — but the scene shows how the wild animals are kept in line

The scene: At a 'Taming Party', a dad presents his young son with a collar to celebrate his coming-of-age

The animated movie, as seen in the theatrical release, follows a rabbit named Officer Judy and her fox sidekick, a con-artist named Nick.

Judy is on the case to find some missing persons, including an otter named Emmitt Otterton. They soon learn that Emmitt has gone 'savage', meaning he returned to a feral state.

Eventually they manage to find him and the other missing animals — but as the new deleted scene shows, the plot originally explained just how those animals were generally kept from returning to a feral state in the first place.

The clip features a rough animation, incomplete but dubbed over with voices.

It picks up with Officer Judy and Nick finding themselves hiding under a tablecloth, unexpectedly watching a 'Taming Party'.

Here it goes... The film's two main characters, Officer Judy and Nick, watch while hidden as the bear, Morris, is given the collar

The build-up: Morris seems proud and excited, though his father is hesitant to fasten it

That's a bad thing: Once it is on his neck, Morris begins to celebrate excitedly, but soon gets carried away with happiness

At the Taming Party, which is drawn to bare similarities to a Bar Mitzvah — when a Jewish boy becomes a 'man' at the age of 13 — a bunch of young bears are celebrating at a party.

One bear, the father of the little bear being celebrated, gets up on stage to call the room to attention, as Officer Judy and Nick secretly watch, hidden away.

He calls his son, Morris, up onto the stage for a special ceremony, handing over the young bear's first collar. Morris seems excited.

'With this collar, Zootopia welcomes you,' Papa says, while Morris repeats his words. 'With this collar, Zootopia celebrates you.'

Growing more hesitant and distressed, he finishes: 'With this collar, Zootopia accepts you.'

Papa looks sad as he then beckons his son close to wrap the collar around his neck, briefly hesitating before fastening it. That's when his own collar beeps, seeming to signify that Papa is getting dangerously close to demonstrating unacceptable behavior.

That's what it's for?! The shock collar, sensing that Morris is becoming too animalistic, shocks him — and Morris suddenly looks sad and betrayed

Not so Utopian: Hiding, Judy, a rabbit, notices that Nick, a fox, is also wearing a shock collar

Why? Fans have taken to social media to express distress at the new twist

Realizations: Some have said the scene made them cry, and cast the movie in a new light

'What's wrong papa?' Morris asks him.

'Nothing. Papa is just happy for you,' he says before finally clipping the collar shut.

Morris thanks him and gives him a hug, leaving Papa looking worried, wondering what he'd just allowed to happen.

Then Morris walks away and back to the party, excitedly celebrating. However, his celebrations get too spirited, with the little bear showing too much unbridled emotion. Suddenly, the collar flashes and zaps him, sending an electrical shock to keep him in place.

Surprised and saddened, he returns to his Papa for a hug. Under the tablecloth, Officer Judy looks at Nick and notices that he, too, is wearing a collar — and seems both confused and upset by the realization.

Rough: The clip shows the lengths that 'Utopian' societies must go to to maintain ideals

Wow... While the scene is sad, a lot of fans are impressed at the depth it adds

Letting the work speak for itself: Disney has yet to comment on the fans' reaction

That's impressive: The hit film became the twenty-fifth highest-grossing of all time

The clip explains just how all of the more predatory animals in Zootopia — like bears and foxes — are kept 'well-behaved' enough to function in the society, revealing that any time they get too close to returning to their natural state, they're given a painful shock to keep them in line.

Fans watching the clip at home have become distressed by this new information, taking to social media to share their reactions.

'The original concept was DARK. That Taming Party deleted scene almost made me cry,' wrote one Twitter user.