Sarah Silverman ‘s work is known for eliciting laughs, not tears. But the acclaimed stand-up and comic actress has taken a creative detour by starring in the intense addiction drama “I Smile Back,” which premiered at the 2015 Sundance Film Festival. In the latest installment of “Off the Cuff,” Rolling Stone movie critic Peter Travers talks to Silverman about her dramatic break-out role. Silverman says, “There really is no evidence of ‘me the comedian’ in this movie.” She describes her character as “a mom and housewife – smart – and living the life in suburbia. And a drug addict and a manic-depressive, I would say.”