All I know about this movie is that:
-its animated (cartoon)
-it probably came out in the early 90's, I was born in 1994?
-it was about people making a movie, and I remember the main character was this little spoiled brat who would always get mad at people. She was the directers/owners? Daughter or something? She had curls and bows in her hair and a dress, she was short, well she was a little kid.(once again this is a cartoon). At one point in the movie this little girl turns into a monster(not literally) she turns red and gets bigger it think, like a giant.
- I remember being like 4 and watching this and kind of getting scared of the little girl when she gets mad.

PLEASE PLEASE HELP! I REALLY WANT TO WATCH THIS AGAIN BECAUSE ITS BUGGING THE HECK OUT OF ME!

Possibly

Cats Don't Dance

I believe the giant you're remembering was her
Man servant/bodyguard who was a kong sized
Goon.

view clip

Well on second thought
I guess she does get rather
Monstrous during this bit
view clip

Oh my god! I love you sooooo much! I cannot believe you figured it out! I've been going crazy trying to find this movie. I was starting to think it was a dream I had! :) I love you, I love you , I love you !