We don't watch TV or movies. So, hard for me to recommend anything regarding movies. But, why does she have to watch movies to get a positive image about colored skin? She can read books about people who are non-white (my son discovered Dr Martin Luther King, Harriet Tubman, Rosa Parks etc on BrainPop), watch TV shows about them etc. Has she watched Dora and Diego when she was younger? Then, there is the Cosby show which I remember from long ago.
My suggestion is to make her peer group wider to include kids who are non-white so that she will get to know others who are of other skin color and understand that all colors are OK and beautiful. I would suggest that you enroll her in enrichment activities like the local chess clubs, math enrichment schools, lego leagues, science camps, martial arts school, swim team etc where there are more Asians and Indians participating than any other race in my neck of the woods.