Jamie Lynn Sigler can vividly recall her final conversation with her Sopranos costar and TV dad, James Gandolfini. "We were at a casino," Sigler, 44, exclusively told Us Weekly for her recent cover story promoting her upcoming book, And So It Is...: A Memoir of Acceptance and Hope. "He looked at me, and he was like, 'Do you need help walking?' And I was like, 'I'm OK right now.' He was like, 'All right, you tell me if you do.' And I was like, 'I will.