1) A lot of times the director needs to change parts of the book to the film due to time constraints. Also for the movies certain events are made more emotion or more confrontational to keep people interested in the movie.
2) I think the color purple symbolizes hope. The ability to not be held down by anything and have the courage and strength to move against adversity. The will to live, the will to survive, and to be your own person.
3) I believe Shug Avery to be the caregiver, when she was at the house with Celie she would always help her. She explained to her that because she never had a positive experience with sex, that she was still a virgin. She was always there to build her self esteem. Shug and Celie had kind of a mother-daughter relationship / close friendship.
4) I feel that I’ve had my moments where I’ve been put down and felt like I could not move past where I was at (belly of the whale), just like Celie. I’m still working towards moving on and getting direction in my life, and I hope to be able to gain the courage and will to fight past my obsticles, just like Celie.