Why was Emma Watson cast as Belle???

I dont think you understand what the word jealous means.

My issue with the film is they took away from the main story (Bell & the Beast) to embellish the secondary characters. Did we need to see her mom?

I don't see Emma Watson as that.
I happen to know some transgender people & I don't use your crass term.

She's pretty enough for the role.
Beast did not look like any dog I've seen.

I do not think she (E. Watson) was terrible, either. Just because you thought she was terrible, it does not mean that others do. Beauty is in the eyes of the beholder. It´s quite ironic that you are complaining about her looks, when the whole story revolves around that beauty is not just the definition of a shell, but what´s within a person; kindness, intelligence and love.

I liked the film, but for me it did not outshine the original disney animated film. I liked Belle´s father so much more in this live-action version compared to how he was in the original though and it was easier to see the love between father and daughter and what a tough, brilliant, courageous, protective man Belle´father was. The actor portraying LeFou deserves credit as well in that he actually made LeFou more than just a caricature while adding a tragicomic nuance to him. Those two characters really got some compelling layers to them which they severely lacked in the original. I loved that and also how it was shown what a happy ending these two got in the end as well. 

I agree with someone who said that Belle and the Beast should have gotten more story revolving around just the two of them. I think the transformation scene could have been done so much better both story-wise and acting-wise with more flashing lights and in-depth details. The fight scenes regarding the wolves and the last showdown between Gaston and Beast should have been fleshed out. 

The mirror could have been worked on a bit more and the same goes for the rose. 

So wearing glasses would improve my visio
Yes, I had my glasses on when I watched the movie. And when I watched Ghost in the Shell last week. And when I saw Your Name yesterday.

Your use of a disgusting term toward transgenders.
My daughter dated a female to male transgender person, not the male to female you & others seem fascinated with.
Your opinion.
Others think she's pretty. 

I don't really think about the appearance of females. 
Chris Hemsworth is exceptionally easy on the eyes. Tom Hiddleston. Jonly Depp. In his day, Errol Flynn was beautiful.

I'm not superficial enough to rate a person in their appearance.

Sorry. 

It doesn't pay in my job to be swayed by a pretty face. My clients are criminals.