Cats (1998 cast version vs the 2019 movie)
WARNING! This could end up as a bit of a rant, TLDR: I love the musical I hate the film!)
For clarity, in this post I will be referring to the filmed 1998 cast version as 'the musical' and the 2019 movie as 'the movie'.
Cats is a musical that struggles to work as a movie. The decision of the musical, to just film the stage production, was a good idea. You can't really make it into a real movie as there is only 5 minutes of plot and 2 hours of spectacle. Plus there is no main character that we follow through the whole production. It flips between several different characters, presumably to allow live actors to rest between music numbers as it is a music and dance heavy show (see below).
credit: Mr Mistoffelees doing a series of high jumps from the 1998 musical recording
The Movie's decision to add a main protagonist in the form of 'Victoria' was the first of (in my opinion) many mistakes. However the main and most obvious flaw with the film is the animation.
The picture above is Mungojerry, Rumpleteezer and Victoria from the movie and the picture below is Taylor Swift.
First of all, the cats appear naked. I know the are showing some fur but they appear to be bald and I think the lack of human ears actually causes confusion. They look too human to be cats and too human to be cats and thus 'uncanny valley' comes into the picture. Everything is just slightly wrong.
The only cats in the film, that don't appear to be naked are Mistofelees (above) and Skimbleshanks (below), and this is because they are wearing clothes.
You can compare this to the stylised cats from the musical, where the artificial style of the clothes, hair and set allows you to step out of reality and use your imagination in a way that is prevented by the realistic nature of the cgi fur and sets.
Another issue is with the cockroaches in the Jenny Anydots song. The cgi tracking that they used for their exoskeletons doesn't line up with the actors very well and so they look really wrong. Also, they are not even tap dancing in time to the music! It makes the film look really cheap and nasty, despite the large budget.
The picture below is a clip from the film and you can see the hand is clipping through the leg which again jolts you up against the cgi and pulls you from the imagination.
I think that the movie would have been better if they had fully animated the movie along the lines of Puss in Boots or Aristocats, because then it helps you to suspend your belief and enjoy the spectacle. Or, they should have lent fully into the musical theatre with real sets and costumes on the actors and limited the post production cgi to a twitching tail or ear. Again, allowing the viewer to use their imagination and not be constantly butting up against the not quite right nature of the cgi.
Lastly, the least forgivable part is that they utterly messed up the music in a musical!! There is a fabulous YouTube video that gives full details of this (see below) so I won't go into detail here. It is enough to say that the music grates on the ear in many songs. In fact the only passable song in my opinion is Skimbleshanks, as the orchestra played the music and the singer used this to record his version. In many other songs the singer was given free rein with the tempo and the orchestra had to try to record their music to fit. Also, there were very few random pauses which broke up the songs and jarred the ear.
In conclusion, if you enjoy the musical cats, watch the 1998 recording of the stage show and not the 2019 movie adaptation.