T.T.
Please don't take this as being harsh, but you need to introduce different types of conflict to her so she can learn how to deal with them. If you never let her experience these feelings and emotions, she won't know how to handle situations and she will either shut down or freak out. The nice things about movies is that you can pause them when something happens that upsets her and talk about it. She is old enough to listen to reason and understand how and why things happen. She is going to have a hard time growing up if you shelter her from everything, especially from kids movies that are geared to helping little ones deal with problems and finding peace in life.
Good luck.