Denzel Washington hosts a special screening of The Butler for guests like Lee Daniels, Gladys Knight, and Cuba Gooding Jr.; Joe Jonas, Blanda Eggenschwiler, and Jared Eng hit the launch for pal Cara Santana's fashion website, CaraDisclothed; Acne Studios throws a super hip soiree and dinner to celebrate the opening of their new DTLA store in the Eastern Columbia Building—get the scoop on Tuesday's top events with this installment of Last Night's Parties.