Now Add Honey (2015)

Caroline Morgan is delighted when her sister, Beth, brings her movie star daughter, Honey Halloway, home for a visit. But when Beth is suddenly sent to rehab, Caroline is forced to have Honey move in to her suburban home. Honey struggles with life without an entourage, and her cousins, Clare and Harriet, struggle with a movie star hogging the bathroom. But after Honey leads Caroline to uncover a family secret, Caroline struggles most of all, as her life quickly falls apart. Trapped together in the house, a middle-aged woman and a teen starlet must each wrestle with who they really are.