But what about a radical reworking half way through?

Or a change in director?

He started working with Peter Sohn, and the project was announced by Pixar in 2011.

But bigger problems lay ahead.

But eventually it was confirmed that Peter Sohn who had been with the film since 2009 was to direct.

The film was originally conceived asKingdom Of The Sun, withLion Kingco-director Roger Allers at the helm.

Before you might say Prince And The Pauper, the pair swap places.

Yzma then finds out about the switch, and turns the emperor the real one into a llama.

Allers, however, was still pursuing the dramatic side.

Also, the title changed, toThe Emperors New Groove.

It was, eventually, released in 2000, getting a December 15th bow in the US.

And the critical response was very strong, even if the box office didnt set the world alight.

A documentary,The Sweatbox, was put together which covered Sting working on the project.

It leaked onto YouTube in unfinished form in 2012, although its long-since been deleted.

But its journey to get there had been really quite fraught.

As such, two years later, the script was still being worked on.

Animation would then begin in earnest at the start of 2006.

Thatd be running things tight on a live action project, yet alone an animated one.

Perhaps none of those were as pronounced as the trouble that beset Ratatouille, however.

Perhaps this is, at least in part, a matter of… European Sensibility.'

For by that point, he was no longer on the project, having been effectively replaced in 2005.

As Brad Bird would tellEW, Pixar were in a tough spot at a very vulnerable time.

In animation terms, thats beyond turning up half-way through the shoot.

It was kind of crazy.

Toy Story 2 and 3

Not all stories of major retooling are quite as painful.

Now what kind of wringer are they going to put themselves through forToy Story 4, we wonder?

Thus, it started production in June 2004, working under the title ofA Day With Wilbur Robinson.

But he certainly did enough.

And he had problems.

Lasseter and his team convened a meeting straight afterwards withMeet The Robinsonsdirector Stephen Anderson.

The meeting would last six hours.

A new sidekick had been added, there was a new ending and substantive changes had been made.

The film would go on to become a minor hit for the studio.

The film was originally known asAmerican Dog, however, and had a different director attached.

you’re able to almost see the stuffed toys from here.

A new title was put in place,Bolt, and changes were made to the characters and story.

The film eventually made it into cinemas at the end of 2008, to generally warm reviews.

Chris Sanders, meanwhile, co-directedHow To Train Your Dragon.

Which remains, to this day, arguably DreamWorks best film.

And, bluntly, its a film that would stand no chance of being made under the current regime.

That said, different versions have popped up on Disneys movie channels in the past.

The Croods

In its original form,The Croodswas a very different beast.

That deal covered, ultimately,Chicken Run,Wallace & Gromit: The Curse Of The Were-RabbitandFlushed Away.

Yet in the midst of it too wasThe Croods.

Things started to change dramatically in 2007, however.

As Aardman and DreamWorks went their separate ways, the film had to be left behind at the latter.

The plan for it to be stop motion was thus abandoned, in favour of a CG feature.

Plenty changed, though.

Only for circumstances to take a turn.

It arrived in the end in 2013, and hit big enough for a sequel to be ordered.

Aladdin

Its hard to know quite where to start here.

Considering the incredible success of DisneysAladdin, its remarkable how close it came to not working at all.

And then material we dont like to talk about duly hit the fan.

The difference here was that Katzenberg wouldnt budge on the release date.

The film was still going to be in cinemas in finished form in November 1992.

TheAladdinteam had to go back near square one, with 22 months to put the whole film together.

Every last bit of it.

Musker and Clements rose to the challenge.

In fact, Ashman was so ill by this point, he was unable to complete his work onAladdin.

He died in 1991, and Alan Menken thus partnered with Tim Rice on the films music.

Even after the films release, there were problems though.

The film was released in the US on June 16th 2002.

The character of Simba also underwent changes, and rewrites continued for much of 1992.

Mike Myers came in, and had to re-record the role from scratch.