I tried a keyword search and couldn't find a board for this magnificent movie. I just rewatched it yesterday and there were two things of note:

1. At the end of the film, when Celie leaves Albert, she tells him everything he does to her will go back to him until he does right by her. When Albert chases after her, volleying insults, Celie whips around and makes a "cat claw" gesture with her hand and again tells him that anything he does will go back to him. Presumably, the gesture is a type of curse or curse-reversal. What's interesting about this is that this is the same gesture Guinan uses on Q in Q Who? (TNG).

2. A nit: In the letters Celie finally finds, her sister Nettie repeatedly refers to Albert by his name. Thing is, Celie didn't know Albert's name until Shug Avery first came to visit, long after Nettie had been sent away. Until Shug's visit, Albert was always referred to as simply "Mister." So how did Nettie (who was in Africa) learn his name?

BLOOPER: After Whoopi's character gets knocked down, (and unconscious), she takes a moment to "fix" her dress so her petticoat isn't showing.

Are you sure you mean Whoopi's character? While Celie certainly gets hit throughout the movie, I don't recall her getting knocked unconscious. Sofia (played by Oprah Winfrey), on the other hand, gets knocked unconscious when the law enforcement officer strikes her with the butt of his gun (after her confrontation with Miss Milly). Except I recall her slip showing in that scene.

Maybe I got my characters mixed up. I do remember reading that blooper somewhere. I know it happens to one of the characters