Thirty years ago, Dee Wallace, a gifted young actress from the wilds of Kansas, dropped into Hollywood with hopeful expectations. Two years later she landed the role of a lifetime and walked onto a soundstage knowing that playing Mary, the smart, funny young mother of Michael, Elliott and Gertie, was going to change her life. In what ways, at what cost, and with what rewards, the star of "E.T.: The Extraterrestrial" had no way of knowing. But in the three decades since her first day of work ...