Weekly recap, including Demi Lovato's downward spiral and drug overdose; Roseanne Barr explains her recent outburst; Brad Pitt's new movie with Leonardo Di Caprio and custody battle; Tom Cruise ("Mission: Possible - Fallout"); "Mama Mia, Here We Go Again"; 30th anniversary of "Cocktail"; Cheryl Burke's long-lost sister; Sharna Burgess body-shamed;—anonymous