did a deep dive on the movie and reported that Jeffrey Katzenberg, the then chairman of Walt Disney Studios, tried to force Williams off the movie as he didn't want the actor performing voice roles in another project the same year Aladdin was coming out."Robin was steaming, like, 'It's my voice! You can't stop me.
"Katzenberg wasn’t happy when he found out. He was behind all the aggravation that Disney caused us: twice we rented facilities, and they gazumped us by paying more. "When we found space in the brewery, Disney tried to buy it. One day Katzenberg and eight or so others marched through to inspect the premises - we scrambled to cover everything up! But it was also really about Robin."
Of course, Disney won the battle in the end simply by having a better movie, but 25 years later, FernGully still has a special place in the hearts of Robin Williams' biggest fans. Ferngully: The Last Rainforest is currently unavailable to stream, rent or buy on any digital platform, so for now, enjoy this scene with Williams firing on all cylinders as Batty.