I don't have enough details regarding Sharon Steve's true story. It could be a story about their friendship, or perhaps it's a story related to some kind of adventure they had together. If you could share some key events or characteristics related to them, it would be easier to talk about their story.
I really don't have enough information to accurately tell the 'Sharon Stevens True Story'. However, if this Sharon Stevens is involved in a particular field such as science, her story could be about a significant discovery she made. Or if she's in the community service area, it could be about how she changed the lives of many people in her neighborhood through her selfless efforts.
Yes. 'The Haunting of Sharon Tate' takes cues from the actual incidents that occurred and builds a narrative around them. However, some creative liberties might have been taken for cinematic purposes.