It was a ghost movie that was based on a book of the same or similar name. set in The Rocks, NSW and watched it on YouTube in around 2010. The opening scene was a playground where a little girl ghost appeared and scared these kids and told her life. I also think she was blue? or her name was Betty or something not rlly sure. Definitely a B there somewhere. I also remember a factory scene and a boyfriend. Something about her wanting an education also.