Advertisement'Tully Gets It': Charlize Theron Wants An Honest Conversation About MotherhoodApril 29, 2018Lulu Garcia-NavarrofacebookEmailTully (Mackenzie Davis), left, is a night nanny who comes to the aid of new mom Marlo (Charlize Theron) in Tully. The film was written by Diablo Cody and directed by Jason Reitman. (Focus Features)