Amy Schumer and Lily Tomlin tackled tough roles this year. Schumer wrote and starred in “Trainwreck” as a hard-partying journalist who reluctantly falls in love; in “Grandma,” Tomlin’s character must drive her granddaughter to an abortion clinic. At Variety‘s Actors on Actors studio, they discuss the joy of playing unlikable women. Presented by The Cosmopolitan of Las Vegas.