I have watched the entire show and have not known that a movie was coming out so I was excited when I saw this but when watching I always cringed at what they were doing it saying. I don't like musical's either cause I find them to be cringe which made my rating lower then 3. I did not like how hawk moth or Gabriel agreste found out cat noir was actually Adrien ( his son.)
The end of the movie also made me quite mad and full of rage but I won't spoil it. Marinettes voice and singing did not match well as when she sang her voice would get deeper then what it usually is, high and child like. There were some parts of the movie I did like and the animation was done really well. These are just my opinions and I did not really enjoy it but if you like musical's and such this is right up your ally.