“Cats” director Tom Hooper has revealed the characters went through a bit of a re-designing process after the first trailer got people talking online.

The likes of Ian McKellen, Taylor Swift, Idris Elba and Jennifer Hudson were seen in the previously-released clip in all their feline glory. However, not everybody was a fan of how the teaser turned out.

Therefore, Hooper admitted the reaction resulted in the team making some tweaks to the character designs.

Hooper told Empire magazine, “We’d only finished shooting in March, so all the visual effects were at quite an early stage.

“Possibly there were, in the extremity in some of the responses, some clues in how to keep evolving [the production].”

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“When you watch the finished film, you’ll see that some of the designs of the cats have moved on since then, and certainly our understanding of how to use the technology to make them work has gone up, too.”

He added that he wasn’t ready for the huge amount of attention the trailer, released in July, got online.

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Hooper shared, “I was just so fascinated because I didn’t think it was controversial at all. So it was quite entertaining. ‘Cats’ was apparently the number-one trending topic in the world, for a good few hours at least.”