From NetFlix:

Haunted by the death of her mother, 14-year-old Lily (Dakota Fanning) escapes the dreary life she lives on her father’s farm and heads to Tiburon, S.C., with her friend and caregiver, Rosaleen (Jennifer Hudson), setting off on a life-changing journey of self-discovery. Set amidst the hotbed of racial tensions in the South in the 1960s, Gina Prince-Bythewood’s dramatic tale is based on the bestselling novel by Sue Monk Kidd.

Basically this is a really sweet and gentle film. Just ignore the incident of racial violence near the beginning that starts Lily and Rosaleen on their odyssey (and even that incident is not too hard to watch). Do I believe there was this oasis of black happiness somewhere in the South of the 1960s? Who cares! Just enjoy the conceit. Did Lily become awfully mature for a girl her age? Who cares! Did the film sometimes border on the maudlin? Who cares!

For some background on the author and her novel see the Wikipedia article.